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Save disk space for ISOs

947 bytes added, 12:53, 17 May 2019
PlayStation Portable: DAX, JSO, ZSO, PBP
==PlayStation Portable==
===CSO (aka CISO)===
* '''Archive-quality dump?''' No Maybe: while the actual compression is inherently lossless, depending on the conversion software and/or its configuration, so-called ripping (changes disc structuredeletion or zero-resizing of the system update, some gameplay issuesvideos, or other files)may be performed on the fly.* '''Gain:''' Immediate (ISO dump size lowers). Substantial, depending on game. Increases Higher compression levels generally produce decreasing space gains while potentially increasing load times on real hardware but not emulators. Some tools allow for leaving audio/video content uncompressed.* '''Tools Used:''' CISO, CISO GUI, maxcso, UMDGen or , PSP ISO Compressor, CISO Multi Compressor, CISO XP, ...
<br />CISO GUI (CISO is command line-based): Drag-and-drop ISO file on program, Select compression level (1 to 9 (Max)), "Compress", and choose directory for saving the new CSO file.
<br />UMDGen is a PSP ISO editor. You can save to either the CSO format with this.
* '''Can be reverted?''' Yes, using the same tools and saving in ISO (uncompressed) format. No data loss.
* '''Playable on Hardware?''' Yes - most CFWs (Possibly longer load times though).
* '''Playable on Emulators?''' Yes - PPSSPP.
 
===DAX, JSO, ZSO===
Three different compressed-ISO formats. Significantly lower popularity/support than CSO.
 
===PBP===
* '''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.
* '''Can be reverted?''' YesOfficial format for digitally distributed PSP/minis (partially related to the one used for PS1 games), using the same tools containing a compressed disc image and saving in ISO (uncompressed) format. No data loss.* '''Playable on Hardware?''' Yes. Longer load times though.* '''Playable on Emulators?''' Yes. PPSSPPoptionally a custom boot logo.
==Dreamcast==
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