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→GameCube / Wii: WIA format, added mentions of other tools
Dolphin can't play games directly from compressed archives (7zip/zip/gzip/rar...). Instead, it utilizes its own compression method.
* '''Archive-quality dump?''' Yes for GC games, No Not directly for Wii games. (checksum won't be the same, no gameplay issues- may be unscrubbed with [https://gbatemp.net/threads/new-app-nkit-restore-shrink-and-preserve-disc-images-in-playable-formerly-swiit.533402/ NKitRestore])
* '''Gain:''' Immediate (ISO dump size lowers). Considerable, depending on the game.
* '''Tools Used:''' Dolphin; right-click the game(s) in the games list and select "Compress ISO..." ("Compressed selected ISOs..." if more than one is selected)
* '''Can be reverted?''' Yes. You 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- if desired can be unscrubbed [https://gbatemp.net/threads/new-app-nkit-restore-shrink-and-preserve-disc-images-in-playable-formerly-swiit.533402/ NKitRestore].
* '''Playable on Hardware?''' No
* '''Playable on Emulators?''' Only Dolphin.
* '''Gain:''' Not Immediate for just scrubbing (ISO dump size the same); Immediate for trimming (ISO dump size lowers).
* '''Tools Used:''' GameCube ISO Trimmer (scrubbing and trimming for GameCube), WiiScrubber (scrubbing for Wii, although compressing with Dolphin will scrub it anyways).
* '''Can be reverted?''' NoYes, with undo file or (in case of scrubbing) [https://gbatemp.net/threads/new-app-nkit-restore-shrink-and-preserve-disc-images-in-playable-formerly-swiit.533402/ NKitRestore]
* '''Playable on Hardware?''' Yes for scrubbing; some games won't work trimmed.
* '''Playable on Emulators?''' Yes for scrubbing; some games won't work trimmed.
===WBFS - Wii only===
* '''Archive-quality dump?''' No (checksum will be different even when reverted)Not directly, see note about reversing.
* '''Gain:''' Immediate (ISO dump size lowers). Considerable, depending on the game.
* '''Tools Used:''' [http://www.wiibackupmanager.co.uk/downloads.html Wii Backup Manager; ] (after adding your game, go to "Transfer" and select "WBFS") or [https://wit.wiimm.de/ wit (Wiimms ISO Tools)].* '''Can be reverted?''' YesMaybe. You "Add" 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 disk dump , may be missing update/extras partitions (can be laboriously readded with wit and "Transfer" it to a copy of the "ISO" format. Garbage missing data is still there but zeroed out, which won't affect gameplay).
* '''Playable on Hardware?''' Yes!! WBFS dumps are playable on Wii.
* '''Playable on Emulators?''' Yes - Dolphin
A scrubbed and sparse (gap-dropping) format directly derived from the one used in the obsolete WBFS file system. ===CSO (aka CISO) - GC/Wii only===* '''Archive-quality dump?''' No (checksum will be different even when revertedGamecube) Not clear; (Wii)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. CISO files can always be converted back to ISO, but they will remain scrubbed (can be unscrubbed with NKitRestore).* '''Playable on Hardware?''' Yes(Wii only) - Nintendont for Gamecube games, uLoader for Wii games* '''Playable on Emulators?''' Yes - Dolphin A scrubbed and sparse (gap-dropping) format. You "Add" Unrelated to the PSP's CSO disk dump and "Transfer" it to the "ISO" format. Garbage data ===WIA (Wii ISO Archive) - Wii only?===* '''Archive-quality dump?''' Not directly unless --raw option is still there but zeroed outgiven, which woneffectively preventing any space savings.* 't affect gameplay''Gain:''' Immediate (ISO dump size lowers). Less than WBFS.* '''Tools Used:''' wit* '''Can be reverted?''' Maybe. Just as the previous formats, WIA files can always be converted back to ISO, but the conversion may be lossy (reversible with added work) depending on conversion settings.
* '''Playable on Hardware?''' No
* '''Playable on Emulators?''' Yes - DolphinNo A scrubbed and compressed format designed for maximum space savings without cutting corners on corruption detection, but it's not directly playable or editable.
==Wii U==
