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→Wii U
* '''Playable on Hardware?''' No
* '''Playable on Emulators?''' Yes - Dolphin
==Wii U==
All uncompressed ISO 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 (Wii U Compressed Image Dump Archive)===
* '''Archive-quality dump?''' Yes (lossless, doesn't actually alter the data).
* '''Gain:''' Immediate (ISO dump size lowers): Around 50% gain usually (depending on game)
* '''Tools Used:''' [http://mega.nz/#!llQwyQQZ!58fErjqM7pyQZKFKe0Qlu1yLP5EbtmOmiDUN1ElW07c wud tool]. To use, drag-and-drop the ISO on the executable.
* '''Can be reverted?''' Yes. wud tool includes a decompression utility, which recreates the original file.
* '''Playable on Hardware?''' No
* '''Playable on Emulators?''' Yes - Future releases of CEMU (and potentially other Wii U emulators)
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.
==GameBoy Advance / Nintendo DS / Nintendo 3DS==
