| Game | Original ISO | Highly Compressed (7z + scrubbed) | |------|--------------|----------------------------------| | New Super Mario Bros. Wii | 4.2GB | ~900MB | | Mario Kart Wii | 4.1GB | ~1.2GB | | Super Smash Bros. Brawl | 7.9GB | ~2.8GB | | Zelda: Twilight Princess | 4.1GB | ~1.1GB | | Wii Sports | 0.9GB | ~350MB |
If you have a standard .iso file, you can compress it yourself using the Dolphin Emulator: Open . Right-click on the game in your list. Select Convert File . Set the format to RVZ and click Convert .
It uses advanced lossless compression algorithms specifically tuned for GameCube and Wii disc structures.
The need for compression is simple: space. Over time, a few dozen games can fill a multi-terabyte drive. Here are the primary motivations for compressing a collection:
Set up your so your raw ISOs appear in the Dolphin game list. Right-click on the game you want to compress.
April 12, 2026
The most significant development in this area is the format, a revolutionary, lossless compressed disc image developed specifically for the Dolphin emulator by its creators.
Nintendo Wii Roms Highly Compressed |best| Jun 2026
| Game | Original ISO | Highly Compressed (7z + scrubbed) | |------|--------------|----------------------------------| | New Super Mario Bros. Wii | 4.2GB | ~900MB | | Mario Kart Wii | 4.1GB | ~1.2GB | | Super Smash Bros. Brawl | 7.9GB | ~2.8GB | | Zelda: Twilight Princess | 4.1GB | ~1.1GB | | Wii Sports | 0.9GB | ~350MB |
If you have a standard .iso file, you can compress it yourself using the Dolphin Emulator: Open . Right-click on the game in your list. Select Convert File . Set the format to RVZ and click Convert .
It uses advanced lossless compression algorithms specifically tuned for GameCube and Wii disc structures.
The need for compression is simple: space. Over time, a few dozen games can fill a multi-terabyte drive. Here are the primary motivations for compressing a collection:
Set up your so your raw ISOs appear in the Dolphin game list. Right-click on the game you want to compress.
April 12, 2026
The most significant development in this area is the format, a revolutionary, lossless compressed disc image developed specifically for the Dolphin emulator by its creators.
