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→GameCube / Wii
* '''Archive-quality dump?''' Not directly, see note about reversing.
* '''Gain:''' Not Immediate for just scrubbing (ISO dump size the same); Immediate for trimming (ISO dump size lowers).
* '''Tools Used:''' GC-Tool ("wipe garbage data..." - Scrubbing for GameCube), GameCube ISO Trimmer (scrubbing and trimming for GameCube), WiiScrubber (scrubbing /trimming for Wii, although compressing with Dolphin will scrub it anyways).
* '''Can be reverted?''' Yes, with WiiScrubber's undo file or NKit.
* '''Playable on Hardware?''' Yes for scrubbing; some games won't work trimmed.
* '''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 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 laboriously 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
A scrubbed and sparse (gap-dropping) format directly derived from the one used in the obsolete WBFS file system.
Ideal space-saving option for Wii games to be played via an USB loader.
===CSO (aka CISO) - GC/Wii===
* '''Archive-quality dump?''' (Gamecube) 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 NKitRestoresame caveats as WBFS).
* '''Playable on Hardware?''' Yes (on Wii/Vwii only) - Nintendont for Gamecube games, uLoader for Wii games
* '''Playable on Emulators?''' Yes - Dolphin
A scrubbed and sparse (gap-dropping) format. Unrelated to the PSP's CSO format.
Ideal space-saving option for Gamecube games to be played on Nintendont.
===FST (extracted File System) - GC/Wii===
* '''Playable on Emulators?''' Yes - Dolphin (both GC and Wii)
This has the advantage of easy experimenting with [[#Destructive Modification]]. Includes all disadvantages of trimming.
===WIA (Wii ISO Archive) - Wii only?===
* '''Gain:''' Immediate (ISO dump size lowers). More than WBFS.
* '''Tools Used:''' wit
* '''Can be reverted?''' Maybe. Just (same caveats as the previous formats, WIA files can always be converted back to ISO, but the conversion may be lossy (reversible with added workWBFS) depending on conversion settings.
* '''Playable on Hardware?''' No
* '''Playable on Emulators?''' No
* '''Tools Used:''' NKit.
* '''Can be reverted?''' Yes!
* '''Playable on Hardware?''' (GC) Yes? - ISO-based variant only (Wii) No
* '''Playable on Emulators?''' Yes - Dolphin
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 various options such as full decryption and optionally splitting the often non-unique update partitions to separate files. NKit ISO is the ideal space-saving option for Gamecube games to be played on a Gamecube.
==Wii U==
