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{{Infobox console|title = PlayStation Portable|logo = PSPDisc images (commonly known as ISOs, but ISO is actually a specific format) are faithful software recreations of game discs (when made correctly). However, with disc sizes ranging from 700 MB (CD), 1.4 GB (GC Mini-1000_DVD), 4.7 GB (Whitesingle-layered DVD).jpeg|developer = [[:Sony]]|type = [[:Category:Handheld consoles|Handheld game console]]|generation = [[:Category:Seventh, and 25 GB (Blu-generation video game Ray), they can get pretty taxing for storage, especially when newer generations of consoles|7th generation]]|release = 2004|discontinued = 2015|successor = [[Emulators on Vita|PlayStation Vita]]|emulated = {{✓}}}}games are getting bigger in file sizes.
The It wouldn't be so bad if not for the fact that the game data itself is often times only a fraction of the actual disc size - for instance, the ''[[wikipedia:PlayStation Portable|PlayStation Portable]]'Super Mario 25th Anniversary'' Wii disc itself is a 4.7GB, when really the actual game data is only a single SNES ROM (PSP12 MB of useful data, to be precise) and nothing else. Naturally, one would want to trim this extra "fat" as much as possible, which is what this page aims to help to achieve. Most of the information here is a handheld game console made by [based partially on this [wikipediahttps:Sony|Sony]//www.reddit.com/r/emulation/comments/3g933n/guide_reduce_the_size_of_your_ps2_gc_wii_x360_ds/ guide].
The PSP [https:'''How does one lighten ISO //digiex.net/threads/psp-6-61-custom-firmware-install-on-any-psp-psp-psp-slim-psp-3000-psp-go-e1000.12915/ Custom Firmware 6.61-Pro-C2] will work on all PSP models from the original PSP to the PSP Go and even the E1000, all you need is to be running the official 6.60 or 6.61 firmware to install and use this custom firmware.ROM dumps?'''
Note : On There are many ways, some methods alter the 15/01/2015 Sony released PSP firmware 6data forever while others can be converted back and forth with generally no loss.61, some three Some conversions are only playable on specific emulators and may not work on real hardware depending on the console and a half years after the last 6.60 updatemethod used. It's of no benefit important to you updating to 6.61 after take all this time, however the custom firmware has now been updated to support 6.61. So you can now follow this guide if you happen to have updated to 6.61into consideration before attempting as most of these are console-specific.
The specific emulator versions compatible with '''Archive-quality''' dumps are ones that when converted back to its original state, will have the same checksum as the [http://wololoofficial uncompressed release.net/wagic/hbl/ Half-Byte Loader] Compressions that can't be reversed, or those that can be found listed [http://wololobut will have missing or altered content whether it interferes with functionality (rebuilt table of content) or not, are not archive-quality.net/talk/viewtopic.php?f=12&t=42 on For example, the official site]. Emulators WBFS format, used for OFW are meant to run on unmodified firmwareshrinking Wii discs, a list for that is also on [http:not archive-quality since it may be missing padding content and upgrade partitions (which have their uses in 3DS//wololo.net/talk/viewtopic.php?f=2&t=1879 the HBL forums]Wii modding) compared to an intact, uncompressed dump.
*[https://github.com/PSP==Applicable to All Platforms=====Audio-Archive/ARK-4 ARKCD===PCs, Sega-4 e/CFW for the PSP and PS Vita]*[https://www.psxCD, PC-placeEngine, PlayStation, Sega Saturn.com/resources/pbp-unpacker-0-94.206/ PBP Unpacker] Used for <code>EBOOT.PBP</code> files unpack what do these systems all have in common? They all use a regular CD format! Game developers often stored music and modify tool.*[https://github.com/YoMizzy/PSXBINq PSXBINq] Tool other sounds using the Audio-CD format, but it was terribly inefficient when it comes to disc storage as it also had to unpack PSX PBP store the actual game along with the sound files (commonly known as a "mixed CD"), and convert to .BIN & .cue these sound files Ready are never compressed because the Audio-CD standard simply doesn't allow for Playstation Classicsound compression. To put it in perspective, a 700 MB CD containing nothing but Audio-CD data can hold at most around 80 minutes worth of sound data, meaning games that used a lot of sounds were limited in size.
===PPSSPP Test==={|class="wikitable" width=300px! style="background:#E9E9E9;borderBecause these mixed CDs are difficult to properly archive just by using standard .ISO files, data-dumping software will usually do one of two things as a workaround: 1px #111111 solid;" width=35% | Compat Legend! style="background:#E9E9E9;border'''Full Dump: 1px #111111 solid;" width=10% | Class|-|style="background:#32CD32;border: 1px #111111 solid;"| Emulator that work 100% or have few''' BIN/very minor issues, and fully playable.ISO + CUE|style="background:#32CD32;border: 1px #111111 solid;"|Worked|-|style="background:#00BFFF;border: 1px #111111 solid;"| Emulator that have glitches menu* BIN/screenISO is the full disc data, but are otherwise perfectly worked.|style="background:#00BFFF;border: 1px #111111 solid;"|Less issues but fully Worked|including Audio-|style="background:#FFA500;border: 1px #111111 solid;"| Emulator that mostly work but with more serious bugs (like a blue screen and crash) CD sound data and Low compatibility.game data|style="background:#FFA500;border: 1px #111111 solid;"| Low Compatibility issues|-* CUE is the datasheet file|style="background:#FA8072;border'''Light Dump: 1px #111111 solid;"| Emulator that doesn't load and have major problems and'' ISO + MP3/or are unplayable.WAV + CUE|style="background:#FA8072;border* ISO is the disc data with only the game data: 1px #111111 solid;"|Unstable* MP3/Crash|WAV is the sound data from the Audio-CD, but these formats take much less disk space|style="background:#A9A9A9;border: 1px #111111 solid;"|Unknown status. Emulator hasn't been tested.|style="background:#A9A9A9;border: 1px #111111 solid;"|Untested|}* CUE is the datasheet file
=<B>MultiDevelopers have long since stopped using the Audio-Systems</B>=CD format, and instead prefer custom audio formats that come included in the "game data" part of the disc. By the launch of the fifth generation CD-based consoles, i.e. the [[PlayStation emulators|PS1]] & the [[Sega Saturn emulators|Saturn]], it was more common than not to just use the Audio-CD part for messages like "Don't put this in a CD player!" and little else. That being said, there were still quite a few fifth-gen games that used Audio-CD data for their soundtracks, such as ''Vib-Ribbon'' and the ''Wipeout'' trilogy on the PS1, and ''Battle Garegga'' and ''Daytona USA'' on the Saturn.
===<B>[[RetroArch]]<* '''Archive-quality dump?''' No (unless audio is converted to and from uncompressed formats, which is unlikely)* '''Gain:''' Several hundreds of MBs to just a few dozens, depending on how much this specific game relies on the Audio-CD sound format* '''Tools Used:''' Load the BIN+CUE using a virtual drive, then use a CD dumping tool* '''Can be reverted?''' Yes, just burn the ISO+MP3/B>===WAV+CUE again using a CD burner tool (ImgBurner) either to a physical disk or as an ISO+BIN file. Lossy audio formats will result in data loss.* '''Playable on Hardware?''' No, but can be reverted to be* '''Playable on Emulators?''' Yes (use virtual drive if needed). Some aren't compatible with MP3, if that's the case, convert them to WAV with MP32WAV. You may need Sega Cue Maker.
<B><codeExamples:* Princess Crown (SAT): 574 MB > [http72 MB (Game Data) + 50 MB (Audio-CD data in MP3 format)* Captain Tsubasa (SCD)://buildbot.libretro.com/stable/1.9.0/playstation/psp/RetroArch.7z Stable]</B512 MB ></code146 MB (Game Data) + 3 MB (audio as MP3) >(as 7zip) 34 MB (Game Data) + 3 MB (audio)
<B><code> [https://buildbotM3U (playlist) files may be used too for this distribution scheme.libretro.com/nightly/playstation/psp/ Nightly]</B></code>
<B><code> [https://githubSometimes dumps that come this way may not work on some emulators. This is often due to either an incorrect CUE files using the wrong filenames or using MP3 instead of WAV.com/libretro GitHub]</code></B>
<B><code> [https://buildbot===Padding===Devs often have their games much, much bigger than they need to be by putting in accessible garbage data in the disc.libretroGarbage data isn't useful game data and is just used to bloat the disc size.comIt's either a sequence of 00/nightly/playstation/psp/latestFF (you know what's inside a file if you open it with a hex editor), random data, unused/ cut content left during development, and in rare cases, data that is completely unrelated to the game itself. An example of this is ''Shrek SuperSlam'' on the PS2 which has a working copy of ''Tony Hawk's Underground 2'' for the PSP RetroArch Cores]</B></code>hidden in the root of the disc.
<code><font color="Blue"><B> [https://githubThe purpose of doing this can be to fill in spots on the disc so that specific parts of the game's data are in certain areas of the disc. This is done to increase the drive's reading speed so that it's quick enough in certain spots for the game to work properly.com/Abdess/retroarch_systemIt's in the your best interest not to mess with this data arrangement (referred to as LBA and TOC in the case of GC/releasesWii/tagPS2/1.9PSP) as it might break the game in some cases.1 RetroArch BIOS|ROMs]</B></font></B></code>
{| class="wikitable sortable" style="text-align:center;"|-|+ Available cores! Cores! GameAnother reason for having garbage data can be to screw with pirates, who download/System list! [[PPSSPP]]! [[Recommended Emulators|Recommended]] Working?|-!colspan="20"|<B><I>Consoles<upload these games online, by making the ISO bigger and harder to store. Some go a step further and scramble the garbage data, instead of just being a sequence of 00/I></B>|-|[[gpSP]]| rowspan="2" style="text-align: center;" | GameBoy Advance| ?<small> (Blue Screen/Slow)</small>| {{✓}}|-|[[mGBA]]| {{~}}| {{~}}|-|TGB Dual| rowspan="3" style="text-align: center;" | GameBoy/GameBoy Color| {{✓}}| {{✓}}|-|GearBoy| {{✓}}| {{✓}}|-|[[Gambatte]]| {{✓}}| {{✓}}|-|[[Snes9x]] 2005+| rowspan="2" style="text-align: center;" | SNES| {{✓}}| {{~}}|-|[[Snes9x]] 2005| {{✓}}| {{~}}|-|FCEUmm| rowspan="3" style="text-align: center;" | NES/FDS| {{✓}}| {{✓}}|-|[[QuickNES]]| {{✓}}| {{✓}}|-|[[Nestopia]]| {{✓}}| {{✓}}|-|SMS Plus| rowspan="2" style="text-align: center;" | MasterSystem/GameGear/SG-1000| {{✓}}| {{✓}}|-|GearSystem| {{✓}}| {{✓}}|-|PicoDrive| Sega MegaDrive/Genesis/GameGear/MasterSystem/32x/Sega CD| {{✓}}| {{✓}}|-|RACE| rowspan="2" style="text-align: center;" | NeoGeo Pocket/Pocket Color| {{✓}}| {{✓}}|-|[[Mednafen]] NGP| {{✓}}| {{✓}}|-|[[Mednafen]] PCE Fast| rowspan="2" style="text-align: center;" | PCE/PCE CD/SuperGrafx| {{✗}}<small> (Blue Screen)</small>| {{✓}}|-|[[Mednafen]] PCE| {{✗}}<small> (Blue Screen)</small>| {{✓}}|-|Quasi88|NEC PC8801| {{✓}}| {{✓}}|-|NP2Kai|NEC PC9801| {{✗}}<small> (crash)</small>| {{✗}}|-|[[Mednafen]] Lynx| rowspan="2" style="text-align: center;" | Atari Lynx| {{✓}}| {{✓}}|-|[[Handy]]| {{✓}}| {{✓}}|-|ProSystem|Atari 7800| {{✓}}| {{✓}}|-|Atari800|Atari 5200| {{✓}}| {{✓}}|-|[[MAME]] 2003+| rowspan="2" style="text-align: center;" | Multiple Arcade| {{~}}<small> (Slow)</small>| {{~}}|-|[[MAME]] 2003| {{~}}<small> (Slow)</small>| {{~}}|-|81|ZX81| {{✓}}| {{✓}}|-|[[FUSE]]|ZX Spectrum| {{✓}}| {{✓}}|-|[[O2EM]]|Magnavox Odyssey 2| {{✓}}| {{✓}}|-|FreeChaf|Fairchild Channel F| {{✓}}| {{✓}}|-|FreeIntv|IntelliVision| {{✓}}| {{✓}}|-|GW| Game & Watch| {{✓}}| {{✓}}|-|Theodore|MO5/TO7| {{✓}}| {{✓}}|-|X1|Sharp X1/X1 Turbo| {{✓}}| {{✓}}|-|[[fMSX]]|MSX/MSX2/MSX2+/MSXTurboR| {{✓}}<small> (Fast)</small>| {{✓}}|-|[[BlueMSX]]|ColecoVision/SG-1000/MSX| {{✓}}| {{✓}}|-|Frodo|C64| {{✓}}| {{✓}}|-|BK|Electronika 10/11| {{✓}}| {{✓}}|-|CrocoDS|Amstrad CPC| {{✓}}| {{✓}}|-| Lutro| Lua Game Engine| {{✓}}| {{✓}}|-|Uzem|Uzebox| {{✗}}<small> (Super Slow)</small>| ?|-!colspan="6"|<B><I>Games Engines</I></B>|-|LowresNX|Game Engine| {{✓}}| {{✓}}|-|ECWolf|Wolfenstein 3D| {{✓}}| {{✓}}|-|NXEngine|Cave Story| {{✓}}| {{✓}}|-|mrboom|MrFF, to make the ISO much harder to compress using regular archive formats like zip, 7zip, rar, etc. You might be overjoyed to learn this has become the industry standard nowadays. BomberMan| {{✓}}| {{✓}}|-|prboom|Doom| {{✓}}| {{✓}}|-|2048|2048 Game| {{✓}}| {{✓}}|-!colspan="4"|<B><I>Other Tools</I></B>|-|gme|Game Music Emu| {{✓}}| {{~}}|-|PocketCDG|MP3 Karaoke Music Player| {{✓}}| {{~}}|}
===e[mulator] Many compression schemes remove or simplify padding patterns to allow for PSP===easier compression.
{| class="wikitable sortable" style="text-align:center;"{| class="wikitable sortable" styleCHD Compression==="text* '''Archive-alignquality dump?''' Yes (with CHD version 5)* '''Gain:center;"''' Immediate! class="unsortable"|Version* '''Tools Used:''' chdman (included with MAME)| [https://gbatemp.net/download/e-mulator-source-* '''Can be reverted?''' Yes, using extractcd (includedwith MAME)* '''Playable on Hardware?''' No.28313/download* '''Playable on Emulators?version=28313 0''' MAME, DuckStation, PCSX2 (since March of 2021) and DEmul. Some libretro cores for other emulators are starting to add support.82f]| <B>{{✓}}</B> [[PPSSPP]]| <B>{{~}}</B> Recommended|}* '''Can process multi track bin files?''' Yes.
{| class="mw-collapsible mw-collapsed wikitable" style="width: 100%;"! colspan=2 width="250"| e[mulator] 0MAME uses the CHD format for disc images in general and includes tools to convert back and forth.82f|-|<B> Supported Consoles list<Before MAME v145, CHD was in version 4 and it bumped to version 5 from MAME v146 and further. The CHD v5 uses 7zip's LZMA compression on the game data and lossless FLAC compression for the audio data to optimize compression even further than using BIN+CUE+MP3/B>|* PCE<B> ⇔ </B>XPCE Tuned by e* NES<B> ⇔ </B>NesterJ by Ruka* SMS<B> ⇔ </B>SMS Plus/SDL* NGPC<B> ⇔ </B>NeoPop* GBC<B> ⇔ </B>RIN by mirakichi* WSC<B> ⇔ </B>OSwan Tuned by e *Lynx<B> ⇔ </B>PLynx|}WAV data separation alone. CHDv5 is truely lossless.
='''Instructions'''Place chdman.exe and extractcd in the same directory as the dumps you want to compress (dumps must be in BIN+CUE format or GDI). Open Command Prompt and navigate to the directory where you placed chdman.exe and input one of the following:* BIN/CUE-GDI to CHD: <code>for /R %i in (*.cue, *.gdi) do chdman createcd -i "%i" -o "%~ni.chd"</code> (Windows)* CHD to BIN/CUE: <code>for /R %i in (*.chd) do chdman extractcd -i "%i" -o "%~ni.cue"</code> (Windows)Alternatively, if you only need to do one file you can use this: <code>chdman createcd -i "<FILENAME>.cue" -o "<BFILENAME>Intel CPUs.chd"</Bcode>=
{| class="wikitable sortable" style="text-align:center;"! Name! class="unsortable"|Version! scope="col"|8086 emulation! scope="col"|286 emulation! scope="col"|386 emulation! scope="col"|486 emulation! scope="col"|Pentium emulation! scope="col"|Pentium II emulation! scope="col"|Celeron emulation! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [[DOSBox]]| [https://githubIf you have one of the European PSX games that features LibCrypt copy protection, then you will have a .com/pierrelouys/dosbox_psp git]| {{✗}}| {{✗}}| {{✓}}| {{✓}}| {{✗}}| {{✗}}| {{✗}}| {{✓}}| Low| {{✓}}<small> (Low Compatibility/Doesn't Crashed as yet)</small>| {{✗}}|-| Bochs| [https://archivesbi file in addition to the .org/detailsbin/bochs-freedoscue file.7z 1 You will still need to have the .0]| {{✗}}| {{✗}}| {{✓}}| {{✓}}| {{✓}}| {{✓}}| {{✓}}| {{✗}}| Low| {{~}}<small> sbi file in the same directory as the game file (Low Compatibilityin this case, the newly created CHD file)</small>| {{✗}}|-| UniPCemu| [https://superfuryin order to run.itch.io/unipcemu x.x]| {{✓}}| {{✓}}| {{✓}}| {{✓}}| {{✓}}| {{✓}}| {{✗}}| {{✓}}| Low| {{✗}}<small> (Low Compatibility)</small>| {{✗}}|}
{| class="mw-collapsible mw-collapsed wikitable" style="width: 100%;"PlayStation 1==! colspan=2 width="250"|† Bochs=ECM===|* '''Archive-!<B> Windows Operating Systems Supported</B>|-|quality dump?''' No (removes error correction data permanently)* [https'''Gain://winworldpc''' Not Immediate (ISO size doesn't change).com/product/windowsECM only zeroes out redundant error correction data, but in some rare cases this data may be used for anti-98/98-second-edition Windows 98]* [https://piracy, hence corrupting the dump! However it does achieves drastic size reductions when compressed to an archive.org/detailsformat (7zip/Win95OSR2 Windows 95]* [https:gzip//archivezip) .org/details/windowsmeisoandbootdisk Windows ME]* [https'''Tools Used://winworldpc''' PakkISO or ECM Tools.com/product/windowsDrag-ntand-2000/final Windows 2000]|}drop the ISO onto the specified tool, then compress it with 7zip.
=<B>Sony<* '''Can be reverted?''' Yes, using the same tools (unECM), however there is data loss (error correction data) which can damage a select few games. Check the hash with Redump to make sure nothing was altered.* '''Playable on Hardware?''' No.* '''Playable on Emulators?''' Only on recent SVN builds of PCSX-R and ePSXe (they also support 7zip/B>=gzip/zip archives so use them with ECM).
{| class="wikitable sortable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]! class="unsortable"|BIOS|-| PS1P| [https://archive* '''Can be reverted?''' Yes.org/details/ps1p_alpha1For homemade EBOOTs it can be done by using the same tool to generate the BIN+CUE files.7z Alpha 1]| {{✗}}| Low| {{~}}<small> (Slow)</small>| {{✗}}| For commercial releases from PSN you will have to use [https://www.mediafiregithub.com/file/s11dvh2snfrmy29/PS1_BIOS.zipxdotnano/file BIOSPSXtract PSXtract]|-| PSPSone| [https://archive.org/details/pspsoneThere's data loss, but it's negligible in terms of functionality.-7z Alpha]| {{✗}}|* '''Playable on Hardware?| {{✗}}<small> (Super Slow)</small>| {{✗}}| [https://www.mediafire.com/file/s11dvh2snfrmy29/PS1_BIOS''' On PSP, not on PS1.zip/file BIOS]|-| PSX* '''Playable on Emulators?''' PCSX-P| [https://archiveR, DuckStation and ePSXe.org/details/psxpPlayStation 3's ps1_netemu can also use it after packaging it into a PS1 Classic and installing said package.-7z Alpha 2]| {{✗}}| Low| {{~}}<small> (Slow)</small>| {{✗}}| [https://www.mediafire.com/file/s11dvh2snfrmy29/PS1_BIOS.zip/file BIOS]|}
{| classPBP is the official format used by Sony for the PS1 Classics on PSP and PS3. Audio tracks may be compressed in ATRAC3 or as raw PCM (unsupported on PS3's ps1_netemu, supported on PSP only by the earliest versions of POPS or the newest ones with the [http://wololo.net/talk/viewtopic.php?f=28&t="wikitable sortable" style41330&start="text-align:center;"! <B><h3> PSX2PSP - [[PSP Eboots|Official Eboots]60 cdda_enabler plugin]</B></h3>|})
{| class="wikitable sortable" style="text* '''Archive-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[Libretro|Libretro Core]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [[gpSP]]| [http://wololo.net/talk/viewtopic.phpquality dump?f=2&t=12367 0.91 fix 3]<br/>[https://github.com/BASLQC/gPSP git]| {{✓}}<small> ''' No (libretromissing data)</small>| Mid| {{✓}}| ?<small> * '''Gain:''' Not Immediate (Blue ScreenISO dump size the same)</small>| {{✓}}|-, however when used with compression the gain is really noticeable.| [[gpSP#Uo gpSP Kai|Uo gpSP Kai]] † <small> (Unofficial)</small>| [https* '''Tools Used:''' UltraISO, USBUtil, ExPERT//archive.org/details/gp-sp-kai-v-3.4-test-4-b-230fat.-7z 3.4 Test 4 Build 230]<br/>[https://github.com/PSP-Archive/unofficial-gpSP-kai git]| {{✗}}| Mid| {{✗}}| {{✗}}<small> (Bad Exception Address Error/Blue Screen Xpert ([[gpSP#PPSSPP|fixed]])</small>| {{✓}}|-| TempGBA4PSP| [http://www1.axfcwww.net/uploader/so/3063963 26750221]| {{✗}}| Mid| {{✗}}| ?<small> (Blue Screen)</small>| {{✓}}|ps2-| TempGBA4PSP-mod| [https://githubhome.com/phoe-nixforum/TempGBA4PSP-mod/releases gitviewtopic.php?t=3419 guides here])| {{✗}}| Mid| {{✗}}| * '''Can be reverted?<small> (Blue Screen)</small>| {{✓}}|-| gpSP-J| [https://archive''' Not really.org/details/gpSP-JGarbage data here is zeroed out, it's not important and you still have the same disk data structure.7z 12/06/16]| {{✗}}| Mid| {{✗}}| * '''Playable on Hardware?<small> ''' Yes (Blue Screenafter GZIP-decompression)</small>| {{~}}|-| gpSP-mod| [https://archive.org/details/gpSPmod20090720.7z 2009/07/20]<br/>[https://github.com/BASLQC/gPSP-mod git]| {{✗}}| Mid| {{✗}}| ?<small> (Blue Screensome games may break)</small>| {{✗}}|-| PSPVBA| [http://zx81.zx81.free.fr/serendipity/index.php* '''Playable on Emulators?/archives/87''' Yes -PSPVBA-GameBoy-Advance-Emulator-for-PSP-v1.2.4.html 1.2.4]| {{✗}}| Low| {{✗}}| {{✓}}| {{~}}|-| PSPGBA| [https://archive.org/details/pspgba-v-1.2.7z 1.2]| {{✗}}| Low| {{✗}}| {{✓}}| {{~}}|-| GBA Emulator for PSP| [https://archive.org/details/pspgba.-7z 0.01]| {{✗}}| Low| {{✗}}| {{✓}}| {{~}}|}PCSX2 (some games may break)
===GameBoy/GameBoy Color===You may forego the manual scrubbing part entirely. If you feel adventurous you might want to do it to enhance compression though. Let's get to the meaty part though...
{| class="wikitable sortable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PlutoBoy| [https://githubThe PCSX2 emulator supports opening compressed archives containing ISOs.com/RossMeikleham/PlutoBoy git]| {{✓}}| High| {{✓}}| {{✓}}|-| Gambatte| [https://githubThe best format it supports would be '''GZIP'''.com/wally4000/gambatte git]| {{✓}}| Mid| {{✓}}| {{~}}|-| RIN| [https://github.com/mbarczak/psp_rin/releases git]<br/>[https://archive.org/details/rin-rx.-7z RX]<br/>[https://archive.org/details/rin_v1.32n1.2.7z 1.32n1.2]| {{✗}}| High| {{✓}}| {{✓}}|-| MasterBoy| [https://www.psx-place.com/resources/master-system-master-boy-2-10.236 2.10]<br/>[https://github.com/maxbit89/PSPMasterBoy git]<br/>[https://pspstation.org/wp-content/uploads/downloads/MasterBoyv310NoOficial.rar 3.10 Unofficial]<br/>[https://archive.org/details/masterboy-theelf.7z Theelf mod]| {{✗}}| Mid| {{✓}}| {{✓}}|-| GeMP| [https://archive.org/details/ge-mp.-7z 3.3 Final]| {{✗}}| Mid| {{✓}}| {{✓}}|-| SpiceBoy| [https://archive.org/details/spice-boy.-7z r2]| {{✗}}| Low| {{✓}}| {{✗}}|-| PSP-gnuboy| [https://archive.org/details/pspgnuboy_rls.7z r1]| {{✗}}| Low| {{✓}}| {{✗}}|-| Cinoop| [https://github.com/CTurt/Cinoop git]| {{✗}}| Low| {{✓}}| {{✗}}|}
===Nintendo 64===Use 7zip ("Add to archive..." then choose to gzip) or Pigz (multi-threaded, much faster compression) to generate gzip archives containing the ISO file in question. PCSX2 will build an index of each gzip compressed game it loads (as a file in the same directory as the gzip archive), so after the first time where you'll have to wait for the decompression, in all subsequent times there is no speed difference between playing an uncompressed and compressed game. Of course, you can extract the ISO back from the GZIP archive.
{| class="wikitable sortable" style="text-align:center;"! Name! class="unsortable"|Version! classCHD="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|* '''Archive-quality dump?''' Yes| SNES9xTYL Mod <small> * '''Gain:''' Immediate (SNES9x 1better than GZIP).39 based)</small>| [https* '''Tools Used://github.com/esmjanus/snes9xTYL git]''' chdman| {{✗}}| Mid| * '''Can be reverted?<small> ''' Yes, using the same tool (glitch Screenchdman)</small>.| {{✓}}* '''Playable on Hardware?''' No.|-| SNES9x Euphoria| [https://storage* '''Playable on Emulators?''' PCSX2 (since v1.googleapis7.com/google0-codedev-archive-downloads/v2/code.google1156<ref>Added in 1150 but wasn't built.com/snes9x-euphoria/Snes9x_Euphoria_R5Beta31156 is the first release with CHD support.zip R5 Beta 3]<br/>[https://githubbuildbot.com/BASLQC/snes9x-euphoria git]| {{✗}}| Mid| {{✗}}<small> (hangs when loading a roms)</small>| {{~}}|-| UO SNES9x <small> (Unofficial)</small>| [https://archiveorphis.orgnet/detailspcsx2/y33Ruka0034index.7z 0.02y33 Build 34]php?m=fulllist<br/ref>[https://archive).org/details/uo_Snes9x-0.02pd2-20050728.7z 0.02pd2]| {{✗}}| Mid| {{✓}}| {{✗}}|}
{| class="mw-collapsible mw-collapsed wikitable" style="width: 100%;"PlayStation 3==! colspan=2 width="250"| SNES9x TYL Mod=Extracted files (aka JB format/GAMES)===|* '''Archive-| quality dump?''' Not directly (BD filesystem metadata lost).* SNES9xTYL'''Gain:''' Immediate (mecmany padding between files is removed).* '''Tools Used:''' Most on-console file managers and *man homebrews, 7-Zip and other standard ISO extractors on PC.* '''Can be reverted?''' Yes, using PS3 ISO Rebuilder and an [http://cm Mod is a port of SNES9x 1jonnysp.39 to PSPbplaced. Inaccuracies everywhere, especially with sound, but it's net/ IRD file] representing the best thing available for PSP for SNES emulationoriginal file locations. Use the mecm build where Generic inaccurate JB to ISO conversions possible, unless you use the PSP emulator with makeps3iso (preferred) or genps3iso.* '''Playable on Vita, in which case use the s9xTYLcm build.Use the s9xTYLme version for best performance Hardware?''' Yes - on an actual PSPCFW/HEN|}* '''Playable on Emulators?''' Yes - RPCS3
===NES For a long time (Famicombefore the availability of Cobra and Mamba) the only playable format for PS3 backups (relying on little more than "peek and poke" CFW-provided syscalls to mount the game's folder over the currently inserted disc) but also the least accurate one, with significant compatibility issues (varying on whether the backup is stored on an internal or external drive, whether an original game disc is currently inserted, various optional hacks such as "BDMirror" moving the files to the root of the external drive on demand, ...)/Famicom Disk System===
{| class="wikitable sortable" style="text-align:center;"! Name! classPlayStation Portable="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| Nester-J|[https://wololo.net/talk/viewtopic.php?f=47&t=38758 AOEX r3 SP]<br/>[https://archive.org/details/nester-j-0.3cn.-7z 0.3CN]<br/>[https://archive.org/details/nester-j-112-rx-mod-20160324.7z RX Mod]<br/>[https://archive.org/details/nester-p.-7z 1.12 加强版 0.80]<br/>[https://archive.org/details/nester-j-3-d-a.-7z 3D]<br/>[https://archive.org/details/uo_nj2.7z Unofficial]<br/>[https://github.com/rinrin-/NesterJ_AoEX_R3 git]| {{✗}}| Mid| {{✓}}<small> CSO (Mediumaka CISO)</small>===| {{✓}}|* '''Archive-| NES for PSP| [httpsquality dump?''' Maybe:while the actual compression is inherently lossless, depending on the conversion software and//archive.org/details/nesor its configuration, so-05.7z 0.5]| {{✗}}| Low| {{✓}}<small> called ripping (Low Compatibilitydeletion or zero-resizing of the system update, videos, or other files)</small>| {{~}}|-| InfoNESmay be performed on the fly.| [https* '''Gain://archive.org/details/info-nes-r-03.7z 0.95J]| {{✗}}| Low| {{✓}}<small> ''' Immediate (Low CompatibilityISO dump size lowers)</small>| {{~}}|-| Famicontest|[https://archive.org/details/famicontest031Substantial, depending on game.7z 0Higher compression levels generally produce decreasing space gains while potentially increasing load times.31]| {{✗}}| Low| {{✓}}<small> (Low Compatibility)<Some tools allow for leaving audio/small>video content uncompressed.| {{~}}|-| FCEUltra-* '''Tools Used:''' CISO, CISO GUI, maxcso, UMDGen, PSP (FCEUPSP)| [https://archive.org/details/fceultra-j.-7z 0.3j]<br/>[https://archiveISO Compressor, CISO Multi Compressor, CISO XP, .org/details/fceu-psp.7z 0.3]<br/>[https://github.com/phoe-nix/fceupsp git]| {{✗}}| Low| {{✓}}<small> * '''Can be reverted?''' Yes, using the same tools and saving in ISO (Low Compatibilityuncompressed)</small>| {{~}}|-| PSPFceUltra|[https://archiveformat.org/details/pspfceultra_rls_2No data loss.7z r2]| {{✗}}| Low| {{✓}}<small> * '''Playable on Hardware?''' Yes - most CFWs (Low CompatibilityPossibly longer load times though)</small>| {{~}}|-| Little John PSP| [https://archive.org/details/lj-nes-psp.7z POC]| {{✗}}|* '''Playable on Emulators?| {{✓}}<small> (rename to myrom''' Yes - PPSSPP.nes)</small>| {{✗}}|-|}
{| class="mw-collapsible mw-collapsed wikitable" style="widthCISO GUI and CISO XP: 100%;"! colspan=2 width="250"| NesterDrag-J|and-|NesterJ AoEX R3 SP is based drop ISO file on [https://www.brewology.com/downloads/download.php?id=10829&mcid=1 NesterJ program, Select compression level (1.12 Plus 0.61 RM], so it includes features like rewind mode, cheat codes support, rotated/mirrored screen, sepia palette, support to rare mappers 9 (the pirate bootleg FF7 works on itMax)), etc"Compress", but its compatibility is inferior to 1.13 Beta 2and choose directory for saving the new CSO file.|}
===Game & Watch===UMDGen is a PSP ISO editor. You can save to either the CSO format with this.
{| class="wikitable" style="text-align:center;"|-! Name! class="unsortable"|Version! classDAX, JSO, ZSO="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|Three different compressed-| MaDrigal PSP|[http://wwwISO formats.madrigaldesign.itSignificantly lower popularity/sim/download.php 1support than CSO.0]| {{✓}}| Mid| {{✓}}| {{✓}}|}
{| class="wikitable" style="text-align:center;"|-! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [[Pokémon mini emulators|PokeMini]]|[https:Official format for digitally distributed PSP//archive.org/details/poke-mini.-7z 0.6minis (partially related to the one used for PS1 games), containing a compressed disc image and optionally a custom boot logo.0]| {{✗}}| Mid| {{✓}}| {{✓}}|}
{| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [[DeSmuME PSP]]| [https://github.com/TheMrIron2/DeSmuME-PSP git]<br/>[https://github.com/Xiro28/desmume_psp_experimental git]<small> (Experimental)</small>| {{✓}}| Low| {{✓}}<small> (Midium)</small>| {{~}}|-| DSonPSP| [https://www.psx-place.com/resources/nintendo-ds-dsonpsp-0-7-kayliah-edition.261 Beta 0.7] <small>Kayliah Edition</small><br/>[https://archive.org/details/dsonpsp-mod-by-rnb-psp.-7z mod]<br/>[https://archive.org/details/dsonpspunnoficial01.7z 0.1]| {{✗}}| Low| {{✓}}<small> The psvgamesd gamecard backup creation and mounting tools supports mounting a trimmed backup (Super Slow/Low Compatibility?)</small>| {{✗}}|-| [[NooDS|NooDS PSP]]| [https://githubalthough no tools exist for dumping directly in trimmed format, or converting between full and trimmed.com/Xiro28/NooDS-PSP git]| {{✓}}| Low| {{✓}}<small> (Really Slow)</small>| ?|}
{| class="mw-collapsible mw-collapsed wikitable" style="width: 100%;"! colspan=2 width="250"| DSonPSP|-|Based on DeSmuME PSP project , we get a new Nintendo DS emulator for PSP, called DSonPSP . such as the possibility Neither variant of choosing the position of the screens , choosing .psv format (unrelated to the language in which you want the ROM to run and playing its audio Cobra Blackfin's . Now it psv format) has expanded the number of Roms that are playablecaught on, but despite being the speed, although it has increased compared to the other emulator, is still low.just POC Very Low Compatibilitymost accurate options for physical game backups.|}
===Virtual Boy===
{| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! classExtracted files (NoNpDRM format)="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|* '''Archive-quality dump?''' No for physical titles, close enough (and generally accepted as such) but no cigar for digital ones.| Red Dragon * '''Gain:''' Immediate (Experimentalcompared to ROM).| [https* '''Tools Used://archive''' NoNpDRM plugin + a file manager like VitaShell.org/details/reddragon20071019* '''Can be reverted?''' No.7z 0* '''Playable on Hardware?''' Yes - with the NoNpDRM plugin.38 Exp.]| {{~}}| Low| {{✗}}<small> (Very Slow/Low Compatibility* '''Playable on Emulators?''' ?)</small>| {{✗}}|}
=<B>SEGA</B>=NoNpDRM is a Vita plugin that generates decrypted licenses (valid for any console) when running an original Vita title, as well as allowing the system to accept those licenses, allowing for playing the encrypted files directly copied from a game card or memory card (by extension the name is therefore also used for such files, or the combination of the game's files and a decrypted license).
===SEGA CD/Mega CD===NoPsmDRM is the equivalent for PlayStation Mobile titles.
{| class="wikitable sortable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [[PicoDrive]]| [https:An hypothetical NoPspEmuDRM, allowing for PSP/PS1 eboots to be natively runnable and manageable from the LiveArea/githubContent Manager, is currently not known to exist nor believed to be in development.com/pumpkinlink/picodrive git][https://www.psx-place.com/resources/picodrive.756/ 1.92.3][https://archive.org/details/pico-drive-rus.-7z Russian][https://archive.org/details/pico-drive-cn-bin.-7z Chinese]| {{✗}}| Mid| {{✓}}| {{✓}}|-| Pico-Drive| [https://archive.org/details/picodrivea14.7z A14]| {{✗}}| Mid| {{✓}}| {{✓}}|}
{| class="wikitable sortable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scopeGameCube / Wii="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [[PicoDrive]]| [https://github.com/pumpkinlink/picodrive git][https://www.psx-place.com/resources/picodrive.756/ 1.92.3][https://archive.org/details/pico-drive-rus.-7z Russian][https://archive.org/details/pico-drive-cn-bin.-7z Chinese]| {{✗}}| Mid| {{✓}}| {{✓}}|-| Pico-Drive| [https://archive.org/details/picodrivea14.7z A14]| {{✗}}| Mid| {{✓}}| {{✓}}|}
===MegaDrivePeople used to resort to WiiScrubber (Wii) and GCM Utility (GC) to scrub/Genesis===trim games to end up with dumps that while they had no immediate size change, their randomized garbage data (like "dummy", "padding" or "znull") was still there but zeroed out making archived dumps using zip/7zip/rar formats have stunning gains (from 1.4GB uncompressed to 26MB zipped for Animal Crossing for example!). Of course, the file still needed to be uncompressed to its full size everytime you wanted to play it.
{| class="wikitable sortable" style="text-align:center;"Trimming and scrubbing (in Wiiscrubber terms) aren't the same! Name! class=While they both are terms for "unsortablezeroing garbage data"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [[PicoDrive]]| [https://github.com/pumpkinlink/picodrive git][https://www.psx-place.com/resources/picodrive.756/ 1.92.3][https://archive.org/details/pico-drive-rus.-7z Russian][https://archive.org/details/pico-drive-cn-bin.-7z Chinese]| {{✗}}| Mid| {{✓}}| {{✓}}|-| Pico-Drive| [https://archive.org/details/picodrivea14.7z A14]| {{✗}}| Mid| {{✓}}| {{✓}}|-| DGen PSP| [https://gbatemp.net/download/dgento make it more compression-psp.28301/download?version=28301 1.7][https://archive.org/details/dgen-170-cn-plus.-7z Chinese][https://archive.org/details/dgen-170-rx.-7z RX]| {{✗}}| Mid| {{✓}}| {{~}}|-| MegaDrive for PSP| [https://emulationrealm.net/downloads/friendly, trimming does not just that like scrubbing but takes the extra step of relocating the garbage data to the end of the file/607-megadrive-, hence altering its TOC and requiring the disc to be fakesigned, fora not-psp 0.22]| {{✗}}| Mid| {{✓}}| {{~}}|-| PSP Genesis| [https://gbatemp.net/download/psp-genesis.28303/download?version=28303 0.18c][https://archive.org/details/genesis-0.18c.so-7z Chinese]| {{✗}}| Low| {{✓}}| {{✗}}|-| Generator PSP| [https://gbatemp.net/download/generator-psp.28302/download?version=28302 0big compression gain.01Hence why scrubbing is by far the most authentic and safe way to solve the garbage data problem.0]| {{✗}}| Low| {{~}}| {{✗}}|}
===MasterSystem/GameGear===However compressed formats incorporating the "padding zeroing" part were made since then, and Dolphin supports them! These are the WBFS and GCZ formats.
{| class="wikitable sortable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[Libretro|Libretro Core]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [[PicoDrive]]| [https://github.com/pumpkinlink/picodrive git][https://www.psx-place.com/resources/picodrive.756/ 1.92.3][https://archive.org/details/pico-drive-rus.-7z Russian][https://archive.org/details/pico-drive-cn-bin.-7z Chinese]| {{✗}}| Mid| {{✗}}| {{✓}}| {{✓}}|-| Pico-Drive| [https://archive.org/details/picodrivea14.7z A14]| {{✗}}| Mid| {{✗}}| {{✓}}| {{✓}}|-| SMS Plus PSP| [https://github.com/8bitpsp/smsplus/releases/tag/v1.3.1 git] [http://www.akihabara-online.com/Foro/viewtopic.php?f=8&t=957#p7115 1.5.0<small> theelf Mod</small>] [http://psp.akop.org/smsplus.htm 1.3.1][https://archive.org/details/smsppsp_jp.7z 1.3.1jp2 GCZ (Jp ver)][https://Dolphin native archive.org/details/smsplus.-7z 1.2][https://archive.org/details/smsplusadhoc.7z adhoc]| {{✓}} <small>(libretroformat)</small>| Mid| {{✓}}| {{✓}}| {{✓}}|-| MasterBoy| [https://www.psx-place.com/resources/master-system-master-boy-2-10.236GC/ 2.10][https://pspstation.org/wp-content/uploads/downloads/MasterBoyv310NoOficial.rar 3.10 Unofficial][https://github.com/maxbit89/PSPMasterBoy git][https://archive.org/details/masterboy-theelf.7z <small>Theelf mod</small>]| {{✗}}| Mid| {{✗}}| {{✓}}| {{✓}}|-| PSPMaster| [https://archive.org/details/pspm.-7z 0.0.9 Beta 4]| {{✗}}| Low| {{✗}}| {{✓}}| {{✗}}|-| MMS Plus| [https://psp.scenebeta.com/noticia/mms-plus 1.1]| {{✗}}| Low| {{✗}}| {{✓}}| {{✗}}|-| SMS PSP| [http://psp-news.dcemu.co.uk/smspsp.shtml 0.5]| {{✗}}| Low| {{✗}}| {{✓}}| {{✗}}|-| emuGG| [https://nds.brewology.com/downloads/download.php?id=4502&mcidWii=1 1.0]| {{✗}}| Low| {{✗}}| {{✓}}| {{✗}}|-| emuSMS| [https://nds.brewology.com/downloads/download.php?id=4503&mcid=1 1.0]| {{✗}}| Low| {{✗}}| {{✓}}| {{✗}}|}
===SGDolphin can't play games directly from compressed archives (7zip/zip/gzip/rar...). Instead, it utilizes its own compression method. '''This format has been deprecated in favor of [[#RVZ (Modern Dolphin format) -1000===GC/Wii|RVZ]].'''
{| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[Libretro|Libretro Core]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|* '''Archive-quality dump?''' Not directly (can be restored with NKit).| blueMSX*| [https'''Gain://github.com/libretro/blueMSX-libretro libretro]| {{✓}} <small>''' Immediate (libretroISO dump size lowers)</small>| Mid| {{✓}}| {{✓}}| {{✓}}|-| SMS Plus PSP| [https://github.com/8bitpsp/smsplus/releases/tag/v1.3Considerable, depending on the game.1 git][https* '''Tools Used://github''' Dolphin (right-click the game(s) in the games list and select "Compress ISO.com/TheElf01/SMSPSP Theelf git][http://www.akihabara-online.com/Foro/viewtopic" (or "Compressed selected ISOs.php?f=8&t=957#p7115 1.5.0<small> theelf Mod</small>] " if more than one is selected)), [httphttps://pspwiki.akopgbatemp.orgnet/wiki/smsplus.htm 1.3.1NKit NKit], or [https://archivewit.org/detailswiimm.de/smsppsp_jp.7z 1.3.1jp2 wit (Jp verWiimms ISO Tools)][https://archive* '''Can be reverted?''' Yes.org/details/smsplusYou can right-click on the GCZ-compressed (in blue) ISOs in Dolphin and choose "Uncompress selected ISOs".Garbage data for Wii titles will be zeroed out and thus different from the official dump but will have no effect on gameplay in most cases -7z 1.2]if desired can be unscrubbed [https://archivegbatemp.orgnet/detailsthreads/smsplusadhocnew-app-nkit-restore-shrink-and-preserve-disc-images-in-playable-formerly-swiit.7z adhoc533402/ NKitRestore].| {{✗}}* '''Playable on Hardware?''' No| Mid| {{✓}}| {{✓}}| {{✓}}|}* '''Playable on Emulators?''' Only Dolphin.
blueMSX Some examples:* Super Mario Anniversary (Wii): 4.7 GB (original) > 12 MB (GCZ) (!!)* Super Smash Bros Brawl (Wii): 7.8 GB (original) > 7.1 GB (GCZ) (main cause is only available as a seperate [httpsFMV's low compression)* Xenoblade PAL (Wii): 7.8 GB (original) > 6.3 GB (GCZ)* Super Mario Galaxy 2 (Wii): 4.7 GB (original) > 1.8 GB (GCZ)* Tales of Graces (Wii): 4.7 GB (original) > 4.2 GB (GCZ) (game data already fills the disk)* Animal Crossing (GC): 1.4 GB (original) > 26 MB (GCZ)* Zelda Four Swords Plus Japan (GC): 1.4 GB (original) > 480 MB (GCZ)* Zelda Twilight Princess (GC)://emulation1.gametechwiki4 GB (original) > 1.com/index4 GB (GCZ) (game data already fills the disk)* Megaman Collection (GC): 1.php/Emulators_on_PSP#RetroArch LibRetro] core4 GB (original) > 1.1 GB (GCZ) (sound data is stored as uncompressed stream to fill disk)
{| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [[Yabause]]| [https://archiveThe Dolphin team developed a new compression format based on WIA called RVZ.org/details/yabause-0Unlike all the previous formats, RVZ is lossless and can preserve the padding data on Wii discs as well as the necessary files needed by the Wii's IOS.9Usage is very similar to GCZ in Dolphin itself, but it only works on newer Dolphin versions.10-psp.7z 0.9.10 SVN 2599]| {{✗}}| Low| {{~}}<small> (Slow)</small>| {{✗}}|}
===Dreamcast===* '''Archive-quality dump?''' Yes.* '''Gain:''' Immediate (ISO dump size lowers). Considerable, depending on the game.* '''Tools Used:''' Dolphin 5.0-12188+ (right-click the game(s) in the games list and select "Compress ISO..." (or "Compressed selected ISOs..." if more than one is selected))* '''Can be reverted?''' Yes.* '''Playable on Hardware?''' No.* '''Playable on Emulators?''' Only Dolphin.
{| class="wikitable" style="text=Scrubbing and Trimming -align:center;"! Name! class="unsortable"|Version! classGC/Wii="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|* '''Archive-quality dump?''' Not directly, see note about reversing.| [[nullDC PSP]]* '''Gain:''' Not Immediate for just scrubbing (ISO dump size the same); Immediate for trimming (ISO dump size lowers).| [https* '''Tools Used://archive.org/details/nullDC''' GC-PSP 1Tool ("wipe garbage data.2.1 Beta 1][https://github.com/PSP" -Archive/nulldce-psp git]| {{✓}}| Low| {{✗}}<small> Scrubbing for GameCube), GameCube ISO Trimmer (scrubbing and trimming for GameCube), WiiScrubber (Crash/Slowscrubbing/Low Compatibilitytrimming for Wii, although compressing with Dolphin will scrub it anyways)</small>.* '''Can be reverted?''' Yes, with WiiScrubber's undo file or NKit.| {{✗}}<small> (WIP)</small>* '''Playable on Hardware?''' Yes for scrubbing; some games won't work trimmed.|}* '''Playable on Emulators?''' Yes for scrubbing; some games won't work trimmed.
===VMSScrubbing games zeros out garbage/VMU===dummy data in the ISO file. The resulting file will be the same size, but it will be able to compress better than unmodified ISOs. The difference can be huge depending on the game. Animal Crossing, for instance, will compress to just a 26 MB .gcz file after being scrubbed!
{| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope=Trimming (also known as "coltrucha scrubbing"|[[Emulation Accuracy|Accuracy]]! scope=, and substantially different from the definition of "coltrimming"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|used in ROM-| VirtuaMunstaz| [http://psp-news.dcemu.co.uk/dreamcastvmuemulatorbased systems) games will also defragment the files moving them towards the start of the disc image, resulting in a smaller ISO file.shtml 1The trimmed file can be used immediately at a smaller size without compression, but the game's internal structure will be wholly modified.0]| {{✗}}| Low| {{~}} <small> '''Games relying on direct sector access (Low Compatibilityas opposed to consulting the filesystem)</small>| {{✗}}|}will break if you trim them.'''
===J2ME A scrubbed and sparse (Java 2 Micro Editiongap-dropping)===format directly derived from the one used in the obsolete WBFS file system.
{| class="wikitable" style="textIdeal space-align:center;"|-! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [[PSPKVM]]|[http://sourceforge.net/projects/pspkvm/files/latest/download 0.5.5F][https://githubsaving option for Wii games to be played via an USB loader.com/vadosnaprimer/pspkvm git]| {{✗}}| Mid| {{✓}}| {{✓}}|}
===Atari 130XE/800/800XL===A scrubbed and sparse (gap-dropping) format. Unrelated to the PSP's CSO format.
{| class="wikitable sortable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| Atari800 PSP| [https://wololo.net/talk/viewtopic.php?f=47&t=50039 4.2.0][https://github.com/8bitpsp/atari800 git][https://archive.org/details/atari-800-pspv-0.1.7z 0.1]| {{✗}}| Mid| {{✓}}| {{✓}}|-| PSPAtari| [http://zx81.zx81.free.fr/serendipity/index.php?/archives/286-PSPAtari-Atari-8001305200-EmulatorGreat space-saving option for-PSP-v1.1.3-minor-fix.html 1.1Gamecube games to be played on Nintendont.3]| {{✗}}| Low| {{✓}}| {{✓}}|}
{| class="wikitable" style="text* '''Archive-alignquality dump?''' No* '''Gain:center;"''' Very low with GC ISOs, much better with Wii ones. Can also be combined with classic archives compression (ZIP/RAR/7z etc.) to match WIA and NKit compression ratios.! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|* '''Tools Used:''' [[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSP2600| [httphttps://zx81wit.zx81wiimm.free.frde/serendipityinfo/indexcomposing.phphtml wit]* '''Can be reverted?/archives/360-PSP2600-Atari''' Partially via the align-2600-emulator-for-PSP-v1files.2txt created by wit when extracting.0-cheat.html 1.2.0]| {{✗}}| Mid| {{✓}}| {{✓}}|* '''Playable on Hardware?''' (GC games on Wii/Vwii): Yes -| Stella PSP| [https://gbatempgithub.netcom/downloadFIX94/stella-psp.28297Nintendont/ 0Nintendont].2](Other combinations): No| {{✗}}| Low| {{✓}}| {{~}}|}* '''Playable on Emulators?''' Yes - Dolphin (both GC and Wii)
===Atari 5200===This has the advantage of easy experimenting with [[#Destructive Modification]]. Includes all disadvantages of trimming.
{| class="wikitable sortable" style="text=WIA (Wii ISO Archive) -align:center;"! Name! classWii only?="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|* '''Archive-quality dump?''' Not directly unless --raw option is given, effectively preventing any space savings.| jum52 PSP| [https* '''Gain://jum.pdroms''' Immediate (ISO dump size lowers).de/emulators/emu5200More than WBFS.html 1.1]| {{✗}}| Low| {{✓}}| {{✓}}|-* '''Tools Used:''' wit| PSPAtari| [http://zx81.zx81.free.fr/serendipity/index.php* '''Can be reverted?/archives/286-PSPAtari-Atari-8001305200-Emulator-for-PSP-v1.1.3-minor-fix.html 1.1''' Maybe (same caveats as WBFS).3]| {{✗}}* '''Playable on Hardware?''' No| Low| {{✓}}| {{✓}}|}* '''Playable on Emulators?''' Yes
===Atari 7800===A scrubbed and compressed format designed for maximum space savings without cutting corners on corruption detection, but it's not directly playable or editable. Never really caught on and may be considered de facto deprecated by NKit.
{| class="wikitable" style="text=NKit formats -align:center;"! Name! classGC/Wii="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]* '''Archive-quality dump?''' Not directly, can be restored with NKit! [[Recommended Emulators|Recommended]]|* '''Gain:''' Immediate -(Wii) only for GCZ format.| PSP7800| [https* '''Tools Used://atariage''' NKit.com/forums/applications/core/interface/file/attachment.php* '''Can be reverted?id=149306 1.4''' Yes.0]| {{✗}}* '''Playable on Hardware?''' (GC) Yes - ISO-based variant only (Wii) No| Mid| {{✓}}| {{✓}}|}* '''Playable on Emulators?''' Yes - Dolphin
===Atari Lynx===Apart from its previously mentioned unscrubbing/untrimming features mentioned in the above formats' descriptions, NKit is able to convert any ISO (clean dump or otherwise) to and from an [https://wiki.gbatemp.net/wiki/NKit/NKitFormat intermediate format applying various reversible changes] that optimize the image for lossless compression, including full decryption and optionally splitting the often non-unique update partitions to separate files.
{| class="wikitable sortable" style="textNKit-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|GCZ (as well as plain GCZ) is less space efficient than NKit-| Handy PSP| [https://githubISO compressed with a powerful general purpose archiver (7zip), however it is directly playable in Dolphin.com/8bitpsp/handy/releases/tag/v0.95.1 git]| {{✗}}| High| {{✓}}| {{✓}}|-| pLynx| [https://archive.org/details/plynx-v-09.7z 0.9]| {{✗}}| Mid| {{✓}}| {{✓}}|-| Handy-PSP| [https://archive.org/details/handy-psp-001.7z 0.01]| {{✗}}| Mid| {{✓}}| {{✓}}|}
===Atari ST===But using it for emulation has problems, such as slower emulated load times, breaking netplay if load times aren't the same, and crashing a few games.
{| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| CaSTaway| [http://wwwCompressing NKit.codejediISO with a strong compression format gives the smallest size while being reversible.com/shadowplan/castaway.html r006]| {{✗}}| Mid| {{~}}| {{~}}|}
{| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! classWUX (Wii U Compressed Image Dump Archive)="unsortable"|CD! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|* '''Archive-quality dump?''' Yes (lossless, doesn't actually alter the data).|pJag * '''Gain:''' Immediate (smaller file than WUD): Around 50% gain usually (Virtual Jaguar portdepending on the game)| * '''Tools Used:''' [httpshttp://gbatempmega.netnz/download/virtual#!llQwyQQZ!58fErjqM7pyQZKFKe0Qlu1yLP5EbtmOmiDUN1ElW07c wud tool]. To use, drag-jaguarand-for-pspdrop the ISO on the executable.* '''Can be reverted?''' Yes. The wud tool includes a decompression utility, which recreates the original file.30598* '''Playable on Hardware?''' No (can be converted to an installable format using [https:/download?version=30598 17/02github.com/FIX94/06wud2app wud2app])| {{✗}}| {{✗}}| Low| {{✓}}<small> * '''Playable on Emulators?''' Yes - Future releases of Cemu (Slowand potentially other [[Wii U emulators]])</small>| {{✗}}|}
Rename ROM Files <code><B>.jag By Exzap, Cemu's author ([http://gbatemp.j64<net/B><threads/code> <B>⇔<wii-u-image-wud-compression-tool.397901/B> <B><code> cfrelease thread]).jag</B></code> put it in EBOOTThe tool detects duplicate sectors and only stores them once: all the empty ranges end up removed, storing only ranges which contain file or filesystem data.PBP FileOf course, the original ISO can be reconstituted.
===PC Engine/CD/SuperGrafx ===Consisting of a folder containing *.app, *.h3, title.cert, title.tik, and title.tmd files, this official Nintendo format is how tiles are stored on discs and some system titles are stored on the console and is very similar to how titles are stored on the CDN (on the CDN the files are named differently, .app files are encrypted with the title key and common keys and the tmd has a certificate chain on the end that is same for every tmd). This is equivalent to the files contained within a 3DS CIA file; however unlike a 3DS title, converting a disc title to digital does not require modifying the title itself, thus leaving the title's signatures valid.
{| class="wikitable sortable" style="text-align:center;"! Name! class="unsortable"|Version! classRPX/RPL (aka Installed/Extracted/Loadiine Format)="unsortable"|PCECD! class="unsortable"|SG-FX! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|* '''Archive-quality dump?''' No (dump is extracted to individual files)| [[HuE]]| [https* '''Gain://www''' Immediate (Total size decreases).psx-placeCan be less than a WUX depending on the game.com/resources/turbografx-16-hue-0-70.240/ 0.70]| {{✓}}| {{✓}}| {{✗}}* '''Tools Used:''' see below| High| {{✓}}| {{✓}}|-| PSPHuGo| [http://zx81.zx81.free.fr/serendipity/index.php* '''Can be reverted?''' No, any padding/archivesfile order/365-PSPHUGO-PC-Engine-Emulator-for-PSP-v1signature information is lost.3.1-Irda-Joystick.html 1.3.1]| {{✓}}| {{~}}| {{✗}}| Mid| {{✓}}| {{✓}}|-| PCE for PSP| [https://gbatemp.net/download/pce-for-psp-version.28954/download* '''Playable on Hardware?version=28954 0.83U01] ''' Yes, use [https://psp.brewologygithub.com/downloadsdimok789/loadiine_gx2/get.php?id=10662 0.83D6releases Loadiine GX2]| {{✓}}| {{~}}| {{✗}}| Mid| {{✓}}| {{~}}|}* '''Playable on Emulators?''' Yes
===PC9801===Titles installed to USB or MLC are stored in this format, comprised of three "code", "content", and "meta" folders.
{| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|Can be extracted from disc images with DiscU, UWizard ([[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| NP2| [httpshttp://archivedigiex.orgnet/guides-reviews/detailsconsole-guides/npnintendo-2wii-foru-guides/14680-wii-u-wud-loadiine-gx2-conversion-extract-wud-pspimages-vloadiine-0use.39.7z 0.39html follow this guide for usage information]| {{✗}}| Low| {{~}}| {{✓}}|-|}Emulates V30 ) or JWUDTool, and 80286 CPUsfrom the installable format using JNUSTool. Can be converted to installable format with NUSPacker.
===PC9821===Ideal format for game modding, less so for playing on console due to Loadiine's intrinsic modus operandi (appearing to the OS as the host title, with potentially different permissions) leading to poor compatibility.
{| class="wikitable" style="text-align:center;"! Name! classSwitch="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| NP21| [https://archive.org/details/np-21-for-psp-v-0.39.7z 0.39]| {{✗}}| Low| {{~}}| {{✓}}|}Emulates an i486 CPU.
===PC8801===See overview of formats [https://yuzu-emu.org/wiki/overview-of-switch-game-formats/ here].
{| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! classNSZ="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|* '''Archive-quality dump?''' Yes| Quasi88* '''Gain:''' Immediate (Total size decreases)| * '''Tools Used:''' [https://psp.brewologygithub.com/downloadsnicoboss/download.php?id=8656&mcid=1 0.6.3 r3nsz nsz]| {{✗}}* '''Can be reverted?''' Only NCAs are fully reversible; compressed XCI and NSP files will be different when decompressed| Low* '''Playable on Hardware?''' No| {{✓}}| {{~}}|-| Q88PSP| [https://archive.org/details/q-88-pv-07.7z 0.7]| {{✗}}| Low| {{✓}}| {{~}}|}* '''Playable on Emulators?''' No
===Neo Geo Pocket/Color===Trimming involves deleting bytes from the end of the ROM up to until the first different one.
{| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[Libretro|Libretro Core]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| RACE! PSP| [https:However, with no mandatory allocation table, it's not intrinsecally possible to identify the true end of the used area, and therefore some GBA//psp.akop.org/race.htm 2.16][https://github.com/8bitpsp/race git][https://github.com/TheElf01/NGPSP Theelf git][https://www.psx-place.com/resources/racepsp-theelf-mod.577/ 2.17<small> theelf Mod</small>][https://archive.org/details/race-jp.-7z 2.16jp DS games can be broken by naive automated trimming (Jp verfor example Golden Sun DS)]| {{✗}}| High| {{✓}}| {{✓}}| {{✓}}|-| NeoPop PSP| [https://gbatemp.net/download/neopop-psp.23360/ 0.71.15][https://github.com/8bitpsp/neopop git]| {{✗}}| Mid| {{✗}}| {{✓}}| {{✓}}|-| ngPSP| [https://gbatemp.net/download/ngpsp.27556/ 1.3.1]| {{✗}}| Mid| {{✗}}| {{✓}}| {{✓}}|}
===MS-DOS===Official Nintendo format for developers to install digital titles, later became the most popular format for installable homebrew and game backups owing to the relatively low marketshare of flashcards and emulators (and, for the former, strong impopularity) in favor of CFW.
{| class="wikitable sortable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [[DOSBox]]| [https://github.com/pierrelouys/dosbox_psp git]| {{✓}}| Low| {{✓}} Equivalent of the Wii's WAD (Low Compatibility/Doesnfor digital titles only) and the DSi't Crashed as yet)| {{✗}}|s TAD (again for digital titles only, and with basically no popular support due to the lack of any homebrew title installers supporting the format -| [[DOSBox]]| [http://www.psxnot to be confused with an homonymous unofficial format nor with the files produced by the official export-place.com/resources/dosboxDSiWare-0to-71.270/ 0.71]| {{✗}}| Low| {{~}}| {{✗}}|}SD feature)
{| class="mw-collapsible mw-collapsed wikitable" style="width: 100%;"! colspan=2 widthNCCHs (CXIs and CFAs, 3DS only)==="250"| DOSBox 0* '''Archive-quality dump?''' No (partition table/ticket/signatures...71removed), compared to CCI/3DS and CIA|* '''Gain:''' Immediate (smaller than original ROM -|not applicable to digital titles).* [https'''Tools Used://gbatemp''' GodMode9, ctrtool, .net/threads/dosbox-on-psp-for-an-idiot.486673/ DOSBox Navigator 1.51] * '''Can be reverted?''' No (Win9x/DOSBox 0result will be unsigned)* '''Playable on Hardware?''' Not really, unless packaged back into a CIA or 3DS.71)* '''Playable on Emulators?''' Yes
* 3DS and CIA files, as well as already installed digital titles, are comprised of one or more NCCHs (also called "partitions" or "contents"): the main content (number 0) can either be an executable CXI for software, or a non-executable CFA for a data title. Additional CFAs may be present, [https://wololowww.net3dbrew.org/downloadswiki/NCSD#Overview with conventional indexnumbers].php/download/195 DOSBox EasyNavigator[[Citra]]can run CXIs directly.
* DOSBox 0==Xbox 360==It's certainly better than keeping 8.71 5GB images, but the conversion is [https://www.dosbox.com/wiki/Psp_dosbox an old version] too substantial and [http://wololo.net/2016/12/30/trip-homebrew-lane-dosbox-psp/ doesn't run that irreversible to be suitable for archival purposes since it affects data structure tables as well] with the more demanding games and Windows 9x on the PSP. The DOSBox Navigator packs linked above are for easy navigation through the DOSBox menus on the PSP screen.|}
{| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! classRebuilt ISO="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|* '''Archive-quality dump?''' No (missing data)| [[fMSX]] PSP| [https* '''Gain://wololo''' Immediate (total file size decreases).net/talk/viewtopicIt still works with Xenia.php?t=49633 5.4.2][https* '''Tools Used://github''' ISO2GOD (also a "Games on Demand" X360 image converter).com<br /8bitpsp/fms git]| {{✓}}| Mid| {{✓}}| {{✓}}|-| PSPMSX| [http://zx81>Under Settings, set the output and rebuild path to the same location.zx81Check "Always save rebuilt ISO" and set Padding to "Full (ISO Rebuild)", then save changes.free.fr<br /serendipity/index.php?/archives/368-PSPMSX-MSX-Emulator-for-PSP-v1>"Add ISO", and press "Convert".5Keep generated ISO, and delete generated folder.1-Irda-Joy.html 1.5.1]| {{✓}}| Mid| {{✓}}| {{✓}}|-| fMSX for PSP| [https://archive.org/details/fMSX061.7z 0* '''Can be reverted?''' The padding quantity information alongside the original data structure is lost forever.62b+]| {{✗}}| Mid| {{✓}}| {{~}}|-| HitBit| [https://gbatemp* '''Playable on Hardware?''' Yes.net/download/hitbit.28305/ 0If the rebuilding process didn't damage anything vital.05]| {{✗}}| Low| {{~}}| {{~}}|* '''Playable on Emulators?''' Yes -| uMSX| [https://archiveXenia.org/details/uMSX.7z 0.2]| {{✗}}| Mid| {{✓}}<small> (same as PSPMSX)</small>| {{~}}|}
{| class="wikitable sortable" style="text* '''Archive-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| eSwan| [https://archive.org/details/eSwan009.7z 0.09]| {{✗}}| Low| {{✓}}| {{~}}|-| pSwan| [https://archive.org/details/pSwan_v007.7z 0.07]| {{✗}}| Low| {{✓}}| {{✗}}|-| OSwan| [https://gbatemp.net/download/oswan-0-7-for-psp.28362/download?version=28362 0.01]| {{✗}}| Low| {{✓}}| {{✗}}|-| Cygne| [https://gbatemp.net/download/cygne.28358/downloadquality dump?version=28358 00.0]| {{✗}}| Low| {{✓}}| {{✗}}|-| OswanPSP| [https://archive.org/details/oswan-psp-020.7z 0.2.0]| {{✗}}| Mid| {{✓}}| {{~}}|}''' Yes
===SuperVision===* '''Archive-quality dump?''' Yes
{| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! classFileSystem Deduplication, alternative file systems="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]If you use macOS, you can look up for fuse filesystems which support compression/deduplication. <br /> |-| Potator| [https:If you use windows, you can fire a VM/store your games on ,a pc with a transparent network file server running linux/githubbsd.com(might be viable on low latency networks, and a fast file server) <br /infval/potator> On linux and bsds one can use, filesystems with de-psp-akop git]| {{~}}| Mid| {{✓}}| {{✓}}|}duplication(and possibly transparent file compression) like:
=<B>Arcade System Board</B>=* '''Squashfs'''* '''Note:''' you can mount the filesystem and use an overlay file system to add a new file, and then create a new squashfs against an overlay folder.** '''ReadWriteable?''' No read-only.** '''Deduplication?''' Yes, block level.** '''Active Deduplication?''' No, Deduplication is triggered by the user, during filesystem creation.** '''Available compressors:''' zstd, xz(lzma2), lzma, gzip, lz4, lzo.** '''Compression level control:''' Depends on the compression algorithm, xz dictionary size depends on filesystem block size.** '''Transparent?''' On Linux and BSD via kernel. Squashfuse avaialble for macOS.
{| class="wikitable sortable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|CPS1! class="unsortable"|CPS2! class="unsortable"|CPS3! class="unsortable"|MVS/AES! class="unsortable"|CD! class="unsortable"|Other! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-* '''Btrfs'''| NJEMU| [https://github.com/phoe-nix/NJEMU git][http://www.akihabara-online.com/Foro/viewtopic.php** '''ReadWriteable?f=25&t=930 mvs/ncdz 2''' Yes.3.1 <small> theelf mod</small>]| {{✓}}| {{✓}}| {{✗}}| {{✓}}| {{✓}}| {{✗}}| {{✗}}| Mid| {{✗}}<small> (glitch Menu)</small>| {{✓}}|-| Uo NJEMU mod| [https://github** '''Deduplication?''' Yes, file and block level.com/173210/mvspsp/releases mod rev5]| {{✓}}| {{✓}}| {{✗}}| {{✓}}| {{✓}}| {{✗}}| {{✗}}| Mid| {{✗}}<small> (glitch Menu)</small>| {{✓}}|-| FBA4PSPmod| [https://github.com/PSP-Archive/FBA4PSPmod Psikyo Core]| {{✓}}| {{✓}}| {{✓}}| {{✓}}| {{✓}}| {{✗}}| {{✗}}| Mid| {{✓}}| {{~}}|-| PSP-MAME4ALL| [https://github.com/PSP-Archive/PSP-MAME4ALL/releases git]| {{✗}}| {{✗}}| {{✗}}| {{✗}}| {{✗}}| {{✓}}| {{✗}}| Low| {{✗}}<small> (crash)</small>| {{~}}|-| MAME4ALL for PSP| [https://archive.org/details/mame-4-all-v-4.9r-2-jp.-7z 4.9 r2 (Jp ver)]| {{✗}}| {{✗}}| {{✗}}| {{✗}}| {{✗}}| {{✓}}| {{✗}}| Low| {{✗}}<small> (crash)</small>| {{~}}|-| PSPMAME 0** '''Active Deduplication?''' No, Deduplication is triggered by the user.97- Repuken2| [https** '''Available compressors://github.com/PSP-Archive/pspMAME-0''' zstd, zlib, lzo.97-repuken2/releases git]| {{✗}}| {{✗}}| {{✗}}| {{✗}}| {{✗}}| {{✓}}| {{✗}}| Low| {{✓}}| {{~}}|-| PSPMAME 0.97- MTK| [https://github.com/PSP-Archive/pspMAME-0.97-TMK/releases/tag/0.6 git]| {{✗}}| {{✗}}| {{✗}}| {{✗}}| {{✗}}| {{✓}}| {{✗}}| Low| {{✓}}| {{~}}|-| XMAME| [https://gbatemp.net/download/xmame.28304/ 0.1.2]| {{✗}}| {{✗}}| {{✗}}| {{✗}}| {{✗}}| {{✓}}| {{✗}}| Low| {{✓}}| {{~}}|-| NeoCDPSP| [https://psp.brewology.com/downloads/download.php** '''Transparent?id=3666&mcid=1 0.9''' On Linux via kernel.1][http://yoyofr92.free.fr/psp/neogeo.html 0.5 Official]| {{✗}}| {{✗}}| {{✗}}| {{✗}}| {{✓}}| {{✗}}| {{✗}}| Mid| {{✓}}<small>(vertical and horizontal lines showing in Game screen)</small>| {{~}}|}
=<B>Coleco Industries</B>=* '''Zfs'''** '''ReadWriteable?''' Yes.** '''Deduplication?''' Yes, file and block level.** '''Active Deduplication?''' Yes, deduplication happens during writes.(high memory requirements)** '''Available compressors:''' zstd, zlib, lzo.** '''Transparent?''' On Linux, BSD, via kernel. Openzfs on mac os(?).
===ColecoVision===* '''Xfs'''* '''Note:''' Without de-duplication it is already quiet efficient at storing files.** '''ReadWriteable?''' Yes.** '''Deduplication?''' Yes, file level via duperemove.** '''Active Deduplication?''' No, deduplication is triggered by the user.** '''Available compressors:''' None.** '''Transparent?''' On Linux and BSD via kernel.
{| class="wikitable sortable" style="text* '''Archive-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPColem| [http://zx81.zx81.free.fr/serendipity/index.phpquality dump?/archives/369-PSPColem-A-ColecoVision-Emulator-for-PSP-v1.3.1-irda-joy.html 1.3.1]| {{✗}}| Mid| {{✓}}| {{✓}}|-| ColEm PSP| [http://psp.akop.org/colem.htm 2.6.1]| {{✗}}| Mid| {{✓}}| {{✓}}|-| emuCOL| [https://psp.scenebeta.com/noticia/emucol 1.0]| {{✗}}| Low| {{✓}}| {{✗}}|}''' Yes
===Intellivision===Note, "deleting" often means replacing the file with a 1KB dummy file to prevent the ISO file structure from collapsing on itself, but sometimes such care isn't even put into ensuring it's still in a functional state. Some examples:
{| class="wikitable" style="text-align* delete all videos:center;"this brings Super Smash Bros Brawl to 4.7GB (mainly due to Subspace Emissary).! Name* delete all voice acting and occasionally sound and music: this brings Xenoblade PAL to 4.2 GB with even only one of both dubs removed.! class="unsortable"|Version* delete unused content you could get with emulator cheats like rooms and stuff.! class=* delete "unsortableextra"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-languages other than the language you need.| PSPInt| [http:* If a game has multiple quests, then you could try deleting characters//zx81.zx81.free.fr/serendipity/index.php?/archives/219-PSPInt-Intellivision-Emulator-for-PSP-v1.1.0side-SLIM.html 1.1quest you don't like as much.0]| {{✗}}| Mid| {{✓}}| {{✓}}|}
=<B>Fairchild Semiconductor</B>=Tools used for this are modding tools for rebuilding file trees, like UMDGen (PSP), Tinke (DS) and also regular ISO tools (PS1, Saturn).
===Channel F===Since this results, in most cases, in very noticeable detrimental effects in gameplay (if the game doesn't crash outright), this is nothing short of mutilating the game image. Sadly enough, some of these dumps make it to sharing sites.
{| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[Libretro|Libretro Core]]! scope="col"|Avoid resorting to destructive modifications since it can lead to random crashes and unexpected behavior, especially in games with lots of shared assets. [[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| FreeChaF| [httpshttp://wwwemulation.libretrogametechwiki.com/index.php/category/freechaf/ libretroFile_Hashes Verify your dumps]]| {{✓}} <small>(libretro)</small>| Mid| {{✓}}| {{✓}}| {{✓}}|}to make sure you don't have these, and if you still want to reduce size, prefer using other methods or uses decompression on demand. One reason to use a destructively modified dump is for burning your own Dreamcast games as GD-ROMs were over a gigabyte in size and CD-Rs top out at 850MB.
Only available as a seperate [https://emulation.gametechwiki.com/index.php/Emulators_on_PSP#RetroArch LibRetro] core.* '''Archive-quality dump?''' No (Removes data)
===Odyssey²=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| EmuODD PSP| [http://wololo.net/downloads/index.php/download/8113 1.0]| {{✗}}| Low| {{✓}}| {{✗}}|} • Executing this emulator several times results in no sound anymore until a cold reboot of the PSP. =<B>General Consumer Electronics</B>= ===Vectrex=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPVE| [http://zx81.zx81.free.fr/serendipity/index.php?/archives/321-PSPVE-A-Vectrex-emulator-for-PSP-v1.0.2.html 1.0.2]| {{✗}}| Mid| {{✓}}| {{✓}}|-| PSPVecx| [https://psp.scenebeta.com/noticia/psp-vecx 1.51]| {{✗}}| Low| {{~}}| {{✓}}|} =<B>Commodore International</B>= ===Amiga=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPUAE| [https://www.ultimateamiga.com/index.php?topic=9721.0 UE 0.90 Beta 5][https://github.com/HoraceAndTheSpider/PSPUAE git]| {{✗}}| Mid| {{~}}<small> (Slow)</small>| {{~}}|} ===C64=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| VICE PSP| [https://github.com/rsn8887/pspvice/releases git]| {{~}}| High| {{✓}}| {{✓}}|-| PSPVICE| [http://perso.numericable.fr/ckckck/C64_PSPVice.html 1.2]| {{✗}}| Mid| {{✓}}| {{✓}}|-| C64PSP| [https://gbatemp.net/download/c64psp.28299/ 0.3]| {{✗}}| Mid| {{✓}}| {{~}}|} ===VIC20=== {| class="wikitable" style="text-align:center;"|-! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPVIC20| [http://perso.numericable.fr/ckckck/C64_PSPVice.html 1.1 Beta]| {{✗}}| Low| {{✓}}| {{~}}|} ===Plus/4=== {| class="wikitable" style="text-align:center;"|-! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPYape| [http://zx81.zx81.free.fr/serendipity/index.php?/archives/148-PSPYape-A-Commodore-Plus4-Emulator-for-PSP-v1.0.3.html 1.0.3]| {{✗}}| Mid| {{✓}}| {{✓}}|-| PSPPlus4| [http://perso.numericable.fr/ckckck/C64_PSPVice.html 1.1]| {{✗}}| Mid| {{✓}}| {{~}}|} =<B>Apple</B>= ===Apple II/ll+/lle=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| Apple II Portable| [http://psp-news.dcemu.co.uk/apple2portable.shtml 1.07]| {{✗}}| Low| {{~}}| {{✗}}|} ===macOS 0.x=== {| class="wikitable" style="text-align:center;"|-! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| Basilisk II| [https://github.com/PSP-Archive/Basilisk-II-PSP git]| {{✗}}| Low| {{~}}| {{~}}|} =<B>Acorn Computers</B>= ===BBC Micro=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPBeeb| [http://zx81.zx81.free.fr/serendipity/index.php?/archives/264-PSPBEEB-BBC-Micro-Emulator-for-PSP-v1.1.0-SLIM-+-IR.html 1.1.0]| {{✗}}| Mid| {{✓}}| {{✓}}|} =<B>Joseph Weisbecker</B>= ===Chip8/SChip8=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPChip8| [https://gbatemp.net/download/pspchip8.28298/ 1.0]| {{✓}}| High| {{✓}}<small> (Nice Compatibility)</small>| {{~}}|-| Chip8 Emulator| [https://www.brewology.com/downloads/download.php?id=4077&mcid=1 1.0 Beta]| {{✗}}| Low| {{~}}<small> (Low Compatibility)</small>| {{~}}|-| DreamChip| [https://psp.scenebeta.com/noticia/dreamchip 4]| {{✗}}| Low| {{✗}}<small> (Low Compatibility)</small>| {{✗}}|} =<B>Amstrad</B>= ===Colour Personal Computer (CPC/CPC464)=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPCap32| [http://zx81.zx81.free.fr/serendipity/index.php?/archives/367-PSPCAP32-Amstrad-CPC-Emulator-for-PSP-v1.5.1-Irda-Joy.html 1.5.1]| {{✗}}| Mid| {{✓}}| {{✓}}|-| Caprice32 PSP| [https://wololo.net/talk/viewtopic.php?f=47&t=49644 4.2.0.3][https://github.com/8bitpsp/caprice32 git]| {{✗}}| High| {{✓}}| {{✓}}|-| CPCPSP| [http://psp-news.dcemu.co.uk/cpcpsp.shtml 0.1]| {{✗}}| Low| {{~}}| {{✗}}|} =<B>Sharp Corporation</B>= ===X68000=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[Libretro|Libretro Core]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]! class="unsortable"|BIOS|-| PX68K| [http://hissorii.blog45.fc2.com/blog-entry-249.html 0.10][https://github.com/hissorii/px68k git]| {{✓}} <small>(libretro)</small>| Mid| {{✓}}| {{✓}}| {{✓}}| [https://mega.nz/file/wAd13AyD#ctNqP4QvrduLcn8wSzenN9nfkvaob1Y7OYTwgC4rnYE BIOS]|} ===X1/X1 Turbo=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[Libretro|Libretro Core]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]! class="unsortable"|BIOS|-| X1 Millennium| [https://github.com/libretro/xmil-libretro libretro]| {{✓}} <small>(libretro)</small>| Mid| {{✓}}| {{✓}}| {{✓}}| [https://www.mediafire.com/file/5x1563g1zhyviis/xmiladvbios.zip/file BIOS]|} =<B>Sinclair Research</B>= ===ZX81=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPZX81| [http://zx81.zx81.free.fr/serendipity/index.php?/archives/288-PSPZX81-A-Sinclair-ZX81-emulator-for-PSP-v1.2.0-final.html 1.2.0]| {{✗}}| Mid| {{~}}| {{✓}}|} ===ZX Spectrum=== {| class="wikitable sortable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| FUSE| [http://psp.akop.org/fuse.htm 0.10.0.21][https://github.com/8bitpsp/fuse git]| {{✗}}| Mid| {{✓}}| {{✓}}|-| PsPectrum| [https://gbatemp.net/download/pspectrum.28361/ 1.0.4]| {{✗}}| Low| {{~}}| {{✓}}|-| Unreal Speccy Portable| [https://bitbucket.org/djdron/unrealspeccyp/downloads/ 0.0.62]| {{~}}| Mid| {{~}}| {{✓}}|} =<B>Pyūta/Grandstand Tutor</B>= ===Pyūta/Tomy Tutor=== {| class="wikitable sortable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| InfoPyuta| [http://psp-news.dcemu.co.uk/infopyuta.shtml 0.02j]| {{✗}}| Low| {{✓}}| {{✗}}|} =<B>Miles Gordon Technology</B>= ===SAM Coupé=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPSim| [http://zx81.zx81.free.fr/serendipity/index.php?/archives/280-PSPSIM-A-SamCoupe-Emulator-for-PSP-v1.2.1-speed.html 1.2.1]| {{✗}}| Mid| {{✓}}| {{✓}}|} =<B>Thomson SA</B>= ===MO5=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPMO5| [http://zx81.zx81.free.fr/serendipity/index.php?/archives/354-PSPMO5-A-Thomson-MO5-Emulator-for-PSP-v1.2.0.html 1.2.0]| {{✗}}| Mid| {{✓}}| {{✓}}|} ===TO7-70=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPThom| [http://zx81.zx81.free.fr/serendipity/index.php?/archives/350-PSPTHOM-A-TO7-70-emulator-for-PSP-v1.2.1.html 1.2.1]| {{✗}}| Mid| {{✓}}| {{✓}}|} =<B>Texas Instrument</B>= ===TI99/4A=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPTI99| [http://zx81.zx81.free.fr/serendipity/index.php?/archives/294-PSPTI99-A-TI-994-Emulator-for-PSP-v1.0.3.html 1.0.3]| {{✗}}| Mid| {{✓}}| {{✓}}|} ===TI92=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPXTI| [http://zx81.zx81.free.fr/serendipity/index.php?/archives/358-PSPXTI-A-TI-92-Calculator-emulator-v1.3.0.html 1.3.0]| {{✗}}| Mid| {{✓}}| {{✓}}|} =<B>Tandy Corporation</B>= ===Tandy Color Computer & Dragon32/64=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPDragon| [http://zx81.zx81.free.fr/serendipity/index.php?/archives/304-PSPDragon-A-Dragon-Tandy-Coco-Emulator-for-PSP-v1.0.3.html 1.0.3]| {{✗}}| Mid| {{✓}}| {{✓}}|} =<B>Hewlett Packard</B>= ===HP48=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| PSPX48| [http://zx81.zx81.free.fr/serendipity/index.php?/archives/229-PSPX48-a-HP48-Calculator-emulator-v1.1.0-SLIM.html 1.1.0]| {{✗}}| Mid| {{✓}}| {{✓}}|} =<B>Game Engines</B>= <span class="hdrrmn" style="float:left;"></span> ===ScummVM=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [[ScummVM]]| [https://www.scummvm.org/downloads/ 2.2.0]| {{✓}}| Mid| {{✓}}| {{✓}}|} ===Open Beats of Rage=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [[OpenBOR]] PSP| [https://github.com/DCurrent/openbor/releases/tag/v6391 git]| {{✗}}| Mid| {{✓}}| {{✓}}|} ===Source ports=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|Game! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| Insomnia Proquake| [https://www.dropbox.com/sh/cnxby6ak9tc34ny/AAC3MMzYilT1lcMEXxKD93ola?dl=0 Rev4]| {{✗}}| High| Quake| {{~}}| {{✓}}|-| Doom PSP| [https://psp.brewology.com/downloads/download.php?id=7305&mcid=1 1.4]| {{✗}}| High| Doom| {{~}}| {{✓}}|-| Cave Story| [https://www.cavestory.org/download/cave-story.php current]| {{✗}}| High| Cave Story| {{~}}| {{✓}}|-| Opentyrian PSP| [https://www.psx-place.com/resources/open-tyrian-psp-plus-b4.619/ +b4]| {{✗}}| High| Tyrian| {{~}}| {{✓}}|-| MineCraft PSP| [https://www.psx-place.com/resources/minecraft-psp-1-3-1.191/ 1.3.1]| {{✗}}| High| LameCraft Mod| {{~}}| {{✓}}|-| AGS Runtime| [https://jjs.at/software/ags.html 3.21 r9]| {{✗}}| Mid| AGS Games Runtime Engine| {{~}}| {{✓}}|} ==<B>Visual Novels</B>== ===ONScripter=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| ONScripter for PSP| [https://archive.org/details/ons.-7z 270206]| {{✗}}| Mid| {{~}}| {{✓}}|} =<B>Game Creation Systems (GCS)</B>= ===Digital MZX=== {| class="wikitable" style="text-align:center;"! Name! class="unsortable"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [https://www.digitalmzx.com/ MegaZeux]| [https://github.com/AliceLR/megazeux/ git]| {{✓}}| Mid| ?| {{✓}}|} ==See also== * [[Emulators on Vita]]* [[Emulators on Android OS]]* [[Emulators on PS4]]* [[Emulators on Switch]]* [[Emulators on 3DS]] * [[PlayStation Portable emulators]] <!-- ==References=={{reflist}} --> =External links=<B>* [https://github.com/PSP-Archive/docs PSP Hombrews Library] * [https://docs.google.com/spreadsheets/u/0/d/1tPiCXtLmJ5W3JSIciSAlItnpXNcSna3-Xe0gCXeLJ0A/htmlview?pli=1#gid=2012767625 List of homebrews to be tested] * [https://docs.google.com/spreadsheets/u/0/d/11V_3Z18Va8iJxSsgaPAkEvirSF53O7oX40RvnBcEcNc/htmlview Collection PSP Hombrews Various Sites list] * [https://archive.org/details/@pierre_lou_s Collection PSP Hombrews - {Archive.org}] * [https://archive.org/download/PSPHomebrew/files/ PSP Hombrews - {Archive.org}] * [https://archive.org/details/%40pierre_lou_s?and%5B%5D=subject%3A%22emulator%22&sort=&page=2 Collection PSP Hombrews Emulator - {Archive.org}] * [https://www.psx-place.com/resources/categories/playstation-portable-psp.9/ PSP Resources - {PSX-Place}] * [https://psp.scenebeta.com/search/apachesolr_search/Emuladors%20for%20psp Emuladors list for PSP - {PSPSceneBeta}] * [http://wololo.net/talk/viewtopic.php?f=47&t=44039&fbclid=IwAR1fEvSi0FsPjMZsXKI572g1Q-N1mPdBEkksjpXo23_IIjXZHGmt8aWHpTw Emulation on PSP - {Wololo}] * [https://wololo.net/talk/viewtopic.php?f=47&t=8026 PSP Emulators Bible list - {Wololo}] * [https://wololo.net/talk/viewtopic.php?f=2&t=1879 Signed Hombrews - {Wololo}] * [https://wololo.net/talk/viewforum.php?f=2 PSP Hombrews Forums - {Wololo}] * [https://www.brewology.com/downloads/?dcid=111 Emulators for PSP - {Brewology}] * [https://gbatemp.net/download/categories/emulators.1116/ Emulators for PSP - {GBATemp}] * [http://psp-news.dcemu.co.uk/emulators-for-psp-1158256.html Emulators for PSP - {PSPNews-dcemu.co.uk}] * [https://www.emu-land.net/portable/psp/emuls_for Emulators for PSP - {Emu-Land}] * [https://emulationrealm.net/downloads/category/36-psp PSP Emulators list - {Emulation realm}] * [https://wiki.gbatemp.net/wiki/Game_Engines_on_PSP Games Engines for PSP - {GBATemp}] * [http://zx81.zx81.free.fr/serendipity/index.php?/categories/27-Emulators ZX81 Official Site][https://archive.org/details/psp-homebrew-library?and%5B%5D=creator%3A%22zx-81%22&sort=-reviewdate&page=2 Archive.org] * [http://psp.akop.org/index.html Akop Karapetyan Official Site][https://github.com/8bitpsp GitHub][https://archive.org/details/psp-homebrew-library?and%5B%5D=creator%3A%22akop+karapetyan%22&sort=-reviewdate Archive.org][https://twitter.com/0xe1f Twitter] * [https://mega.nz/file/53oWlaAL#vnNq62_gcOzBL6WZqba8HgJt0MYt05uwJgCgeR1Dvmk PSP Emulators Pack YT][https://drive.google.com/u/0/uc?id=1z4tiVKq4KzHRomVV0NrjfF4vXGs370J6&export=download YT] * [https://youtu.be/n5zd_IArNzk PSP Emulators Info YT] * [https://forums.exophase.com/threads/guides-guides-to-all-emulators-for-psp.2662/ Guides Emulators on PSP - {Exophas forums}] * [https://forums.ppsspp.org/showthread.php?tid=2616 PSP Hombrews Emulators Test - {PPSSPP forums}] * [https://www.gopsp.it/index.php?showforum=14 PSP Hombrews Forums - {Gopsp forums}] * [http://psphunt.blogspot.com/p/psp-hombrew-apps.html?m=1 Ultimate PSP Hombrews list - {PSPhunt}] * [http://psp-r.blogspot.com/2008/03/psp-emulators-and-homebrew-games.html?m=1 PSX2PSP] * [https://www.mediafire.com/toBsucht 400+ PSP Signed etc. Hombrews list][https://dfiles.eu/folders/WT29XIIGT list] * [https://m.facebook.com/homebrewPSP/ Hombrews list FB]</B> [[Category:Recommendations]][[Category:Emulators on consoles]][[Category:Emulators on handheld consolesFAQs]]
Added information regarding PCSX2's CHD support
===PlayStation 1PBP (PSP Format for PS1 Images)===* '''Archive-quality dump?''' No* '''Gain:''' Immediate (ISO size decreases a lot).* '''Tools Used:''' [https://www.reddit.com/r/PSP/wiki/psx2psp PSX2PSP], Popstation MD GUI, [https://www.psx-place.com/threads/w-i-p-utilities-cdda-enabler-for-psx-eboots-on-ps3.23539/ CDDA-ENABLER] (optimized for PS3) ...
=<B>Nintendo</B>==CHD===* '''Archive-quality dump?''' Yes* '''Gain:''' Immediate (better than PBP).* '''Tools Used:''' chdman* '''Can be reverted?''' Yes, using the same tool (chdman).* '''Playable on Hardware?''' No.* '''Playable on Emulators?''' libretro Beetle PSX, Avocado, DuckStation, PCSX2 (since March of 2021, and also because PCSX2 now has PSOne emulation functionality as well, so two-in-one) and PCSX ReARMed.
==PlayStation 2=Game Boy Advance====Manual Scrubbing + GZIP Compression===Often times you can just open the ISO in UltraISO and find the dummy files. Sometimes they are obvious looking files, like DUMMY.BIN, DATA0.BIN (or .DAT), DUMMY.DAT, etc., or are folders with names like "PADDING" and such. You can look into the files (with a hex editor) to see if they're obviously padding data (usually the offsets will be full of 00/FF, though sometimes it's not as obvious). However, you must never mess with LBA and TOC when removing padding. <!--So you try to change the size of the padding file inside the ISO to 0 MB or alter it directly with a hex editor so that it's all zeroed out.--><!--Wording is too weird to figure out what it's say, will fix when more information is obtained-->
A simple method to mass convert a lot of PS2 ISO games to GZIP is this script when run in PowerShell. However, it'll take many hours or days depending on the size of the collection.<blockquote>dir *.iso | ForEach-Object {| class=& "wikitableC:\Program Files\7-Zip\7z.exe" style="texta -tgzip -mx9 -align:center;"! sdel ($_.Name! class=+"unsortable.gz"|Version! class="unsortable"|Active! scope="col"|[[Emulation Accuracy|Accuracy]]! scope="col"|[[PPSSPP|PPSSPP]]! [[Recommended Emulators|Recommended]]|-| [[DaedalusX64]]| [https://github) $_.com/DaedalusX64/daedalus/releases git]| {{✓}}| Mid| {{✗}Name }<small> (Black Screen and Freezes)</smallblockquote>| {{✓}}|-| Monkey 64| [https://github.com/TheMrIron2/Monkey64 git]| {{✗}}| Low| {{✗}}| {{✗}}|}
===SNES CSO (Super Famicomaka CISO)===* '''Archive-quality dump?''' No (missing data)* '''Gain:''' Immediate (ISO dump size the same). Coupled with manual scrubbing, it can be bigger. Not as much of a gain as GZIP though.* '''Tools Used:''' maxcso* '''Can be reverted?''' Yes, using the same tool. No data loss.* '''Playable on Hardware?''' NO* '''Playable on Emulators?''' Yes - PCSX2.
===Pokémon MiniPBP===* '''Archive-quality dump?''' ???* '''Gain:''' Immediate (ISO dump size lowers).* '''Tools Used:''' ISO~PBP Converter, or Sign~Fake NP Expert* '''Can be reverted?''' Yes* '''Playable on Hardware?''' Yes - CFWs (and, if signed, OFWs too).* '''Playable on Emulators?''' Yes - PPSSPP.
==PlayStation Vita=Nintendo DS====Trimming===* '''Archive-quality dump?''' No, but trivially undoable.* '''Gain:''' Immediate (ROM size lowers).* '''Tools Used:''' None - [https://github.com/motoharu-gosuto/psvgamesd#trimming-zeroes manual process]* '''Can be reverted?''' Yes (see above).* '''Playable on Hardware?''' Yes - with psvgamesd.* '''Playable on Emulators?''' ?
==Dreamcast=SEGA 32X/CD 32X====CHD Archive Format===* '''Archive-quality dump?''' CHD v4: No (missing data due to lossy compression, no gameplay issues). CHD v5: Possibly Archive-quality.* '''Gain:''' Immediate (ROM dump size lowers).* '''Tools Used:''' GDI to CHD converter.* '''Can be reverted?''' Yes with CHD v5.* '''Playable on Hardware?''' No* '''Playable on Emulators?''' Yes - DEmul, Reicast, Flycast, and Redream
===SaturnRVZ (Modern Dolphin format) - GC/Wii===
=<B>Oracle Corporation<==WBFS - Wii only===* '''Archive-quality dump?''' Not directly, see note about reversing.* '''Gain:''' Immediate (ISO dump size lowers). Considerable, depending on the game.* '''Tools Used:''' [http://B>=www.wiibackupmanager.co.uk/downloads.html Wii Backup Manager] (after adding your game, go to "Transfer" and select "WBFS") or wit (Wiimms ISO Tools).* '''Can be reverted?''' Maybe. WBFS files can always be converted back to ISO, but they will remain scrubbed (can be unscrubbed with NKitRestore) and, depending on settings at the time of conversion to WBFS, may be missing update/extras partitions (can be readded with wit or NKitRestore and a copy of the missing data).* '''Playable on Hardware?''' Yes - Preferred format by most SD/USB loaders* '''Playable on Emulators?''' Yes - Dolphin
=<B>Atari Inc==CSO (aka CISO) - GC/Wii===* '''Archive-quality dump?''' Not directly, see note about reversing.<* '''Gain:''' Immediate (ISO dump size lowers). Less than WBFS.* '''Tools Used:''' Wii Backup Manager (same as above, but select "CISO" - possibly Wii only), wit* '''Can be reverted?''' Maybe (same caveats as WBFS).* '''Playable on Hardware?''' Yes (on Wii/B>=Vwii only) - Nintendont for Gamecube games, uLoader for Wii games* '''Playable on Emulators?''' Yes - Dolphin
===Atari 2600FST (extracted File System) - GC/Wii===
===Atari Jaguar=Wii U==All uncompressed WUD dumps are 23.3GB, which makes compression needed de facto. Some examples:* Super Mario World 3D: 23.3GB > 2.61GB (88% gain)* New Super Mario Bros. U: 23.3GB > 1.8GB (92% gain)* Donkey Kong Country Tropical Freeze: 23.3GB > 11.7GB (49% gain)
=<B>NEC Home Electronics<==APP (aka NUS/B>Installable Format)===* '''Archive-quality dump?''' No in regard to discs; Partially in regard to CDN data.* '''Gain:''' Immediate (Total size decreases, compared to disc image)* '''Tools Used:''' wud2app (disc image to APP), disc2app (original disc to APP), NUSPacker (extracted format to APP), Teconmoon's WiiVC Injector (Wii/Gamecube disc image to Enhanced Vwii APP), ...* '''Can be reverted?''' No* '''Playable on Hardware?''' Yes (after installation)* '''Playable on Emulators?''' No
==Game Boy Advance / Nintendo DS / Nintendo 3DS=====Trimming===* '''Archive-quality dump?''' No (data removed)* '''Gain:''' Immediate (ROM dump size lowers).* '''Tools Used:''' NDSTokyoTrim (GBA/DS/3DS), rom_tool (3DS), GodMode9 (can directly dump DS/3DS cards in trimmed format)<Bbr />SNK Corporation<NDSTokyoTrim: Drag-and-drop roms, and press "Trim". The original file will be overwritten! * '''Can be reverted?''' No. Some GBA/B>=DS games may be broken by meaningful data at the end of the ROM being mistaken for padding.* '''Playable on Hardware?''' Yes, same file format.* '''Playable on Emulators?''' Yes
=<B>MicroSoft<==CIA (CTR Importable Archive, 3DS and DSiWare only)===* '''Archive-quality dump?''' No in regard to gamecard dumps; Partially in regard to CDN data.* '''Gain:''' Immediate (smaller than original ROM - not applicable to digital titles).* '''Tools Used:''' GodMode9 (can directly dump 3DS cards or installed titles to CIA, as well as converting 3DS to CIA), 3dsconv or 3DS Simple CIA Converter 5.0+ (3DS rom to CIA); makerom (3DS to/from CIA, NCCHs/B>=DSiWare/ELF+RSF to 3DS/CIA), make_cia (DSiWare to CIA)* '''Can be reverted?''' No, if starting from a gamecard dump (update partitions removed, main content's ExHeader modified to change the media type from CARD/NAND to SD Application)* '''Playable on Hardware?''' Yes, after installation.* '''Playable on Emulators?''' Yes?
===MSX/MSX2/MSX2XEX (Xbox Executable) +/MSXturboRData folder (a.k.a Spilling The ISO Guts)===* '''Archive-quality dump?''' No (dump is collapsed to individual files)* '''Gain:''' Immediate (total file size decreases). It still works with Xenia* '''Tools Used:''' XBOX 360 ISO Extract, Exiso-GUI or Exiso. (These might be useful for rom-hacking too I guess?)* '''Can be reverted?''' ISO could be rebuilt, though not accurately.* '''Playable on Hardware?''' Yes. Using a JTAG or RGH exploited console.* '''Playable on Emulators?''' Yes - Xenia.
=<B>Bandai<Other Tricks===Storage Tricks==These methods have the advantage of being compatible with EVERY emulator, even those without proper support for compressed ISO/B>=archive formats.
===WonderSwan/WonderSwan ColorNTFS Compression===You can enable filesystem-level compression (like "NTFS Compression" in Windows) for the directory containing your ISOs/ROMs. This has a very noticeable space gain and doesn't affect the emulator's functionality. It's surprisingly more effective than many people would like to give this credit.
=<B>Watara<==Decompression on Demand===You can keep your ROMs/B>=ISOs compressed in a 7zip archive and use RocketLauncher or any other [[Frontends]] to decompress 7zip archives and pass the contents onto the emulator.
=<B>Mattel Electronics</B>=Destructive Modification==Sometimes, the most bloated part of the game is the game itself, either intentional or because of poor design choices. For instance, many PSP JRPGs have a specific FMV movie duplicated a dozen times, and the Megaman Collection on GCN stores its sound data using an uncompressed format bringing the size of that portion alone to 1GB. In many of these cases, there's just not much you can do about it without destructively altering the game's data.
=<B>Magnavox</B>=References==
