(7z, RAR, ZIP): Using LZMA, PPMd, or Brotli algorithms to compress the ISO. This can often shrink a 1.4 GB ISO down to 200–500 MB depending on the game. Textures and audio compress decently; video files do not.
RVZ Level 10 is the king of “highly compressed GameCube ROMs” for daily use. gamecube rom highly compressed
: This removes all the padding and dummy data, turning the 1.4 GB ISO into a “scrubbed” or “shrunken” game of its true size—often 200 MB to 1 GB . Mario Party games, for instance, might shrink to 200 MB because most of the disc is filler. This scrubbed file is then compressed further with 7z. (7z, RAR, ZIP): Using LZMA, PPMd, or Brotli
: An older, lossy compression format previously used by Dolphin. It is less efficient than RVZ but still widely recognized. RVZ Level 10 is the king of “highly