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Save disk space for ISOs

1,463 bytes added, 21:17, 8 June 2019
Wii U: fixed wrong and misleading terminology, installable format
==Wii U==
All uncompressed ISO 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)
===WUD WUX (Wii U Compressed Image Dump Archive)===
* '''Archive-quality dump?''' Yes (lossless, doesn't actually alter the data).
* '''Gain:''' Immediate (ISO dump size lowerssmaller file than WUD): Around 50% gain usually (depending on the game)
* '''Tools Used:''' [http://mega.nz/#!llQwyQQZ!58fErjqM7pyQZKFKe0Qlu1yLP5EbtmOmiDUN1ElW07c wud tool]. To use, drag-and-drop the ISO on the executable.
* '''Can be reverted?''' Yes. The wud tool includes a decompression utility, which recreates the original file.
By Exzap, Cemu's author ([http://gbatemp.net/threads/wii-u-image-wud-compression-tool.397901/ release thread]). The 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. Of course, the original ISO can be reconstituted.
===RPXAPP (aka NUS/Installable Format)===* '''Archive-quality dump?''' No, with respect to a disc image (update partition and padding dropped); Most accurate format for CDN dumps (digital titles).* '''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/RPL Gamecube disc image to Enhanced Vwii APP), ...* '''Can be reverted?''' No, if starting from a WiiU disc image; Yes (see below) if starting from extracted files* '''Playable on Hardware?''' Yes (after installation)* '''Playable on Emulators?''' ? Consisting of afolder containing *.app, *.h3, title.kcert, title.tik, and title.tmd files, this official Nintendo format intended for development use (and closely related to how digital titles are sold in) is equivalent to the 3DS's CIA format; however unlike a 3DS application, converting a. Spilling disc title to digital does not require modifying the title itself, thus leaving the WUDtitle's Gutssignatures valid. ===RPX/RPL (aka Installed/Extracted/Loadiine Format)===* '''Archive-quality dump?''' No (dump is collapsed extracted to individual files)* '''Gain:''' Immediate (Total size decreases). Can be less than a WUD WUX depending on the game.* '''Tools Used:''' [http://wiiubrew.net/uwizard/ UWizard.] [http://digiex.net/guides-reviews/console-guides/nintendo-wii-u-guides/14680-wii-u-wud-loadiine-gx2-conversion-extract-wud-images-loadiine-use.html Follow this guide for usage information.] You'll need the disc key for the game you're trying to extract, which you should have gotten with the WUD.see below* '''Can be reverted?''' Any No, any padding /signature information is lost.
* '''Playable on Hardware?''' Yes, use [https://github.com/dimok789/loadiine_gx2/releases Loadiine GX2]
* '''Playable on Emulators?''' Yes
 
Titles installed to USB or MLC are stored in this format, comprised of three "code", "content", and "meta" folders.
 
Can be extracted from disc images with DiscU, UWizard ([http://digiex.net/guides-reviews/console-guides/nintendo-wii-u-guides/14680-wii-u-wud-loadiine-gx2-conversion-extract-wud-images-loadiine-use.html follow this guide for usage information]) or JWUDTool, and from the installable format using JNUSTool. Can be converted to installable format with NUSPacker.
 
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.
==Game Boy Advance / Nintendo DS / Nintendo 3DS==
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