12
edits
Changes
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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 FMV'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): 1.4 GB (original) > 1.4 GB (GCZ) (game data already fills the disk)
* Megaman Collection (GC): 1.4 GB (original) > 1.1 GB (GCZ) (sound data is stored as uncompressed stream to fill disk)
→GameCube / Wii
==GameCube / Wii==
People used to resort to WiiScrubber (Wii) and GCM Utility (GC) to scrub/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.
* '''Playable on Hardware?''' No
* '''Playable on Emulators?''' Only Dolphin.
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 FMV'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): 1.4 GB (original) > 1.4 GB (GCZ) (game data already fills the disk)
* Megaman Collection (GC): 1.4 GB (original) > 1.1 GB (GCZ) (sound data is stored as uncompressed stream to fill disk)
===Scrubbing and Trimming - GC/Wii===
A scrubbed and sparse (gap-dropping) format. Unrelated to the PSP's CSO format.
===FST (extracted File System) - GC/Wii===
* '''Archive-quality dump?''' No
* '''Gain:''' 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.
* '''Tools Used:''' [wit](https://wit.wiimm.de/info/composing.html)
* '''Can be reverted?''' Partially via the `align-files.txt` created by wit when extracting.
* '''Playable on Hardware?''' '''GC only via [https://github.com/FIX94/Nintendont/ Nintendont], '''
* '''Playable on Emulators?''' Yes - Dolphin (both GC and Wii)
This has the advantage of easy experimenting with [#Destructive Modification].
===WIA (Wii ISO Archive) - Wii only?===
* '''Archive-quality dump?''' Not directly unless --raw option is given, effectively preventing any space savings.
* '''Gain:''' Immediate (ISO dump size lowers). Less More 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.
