You can choose how much "junk data" to remove, balancing file size with load times. How to Compress Your Own ROMs

Developed specifically by the Dolphin team, RVZ is currently the best way to store highly compressed GameCube ROMs.

While compressed ROMs work perfectly on modern PCs and high-end Android phones, there are some considerations for original hardware:

This was the standard compression format for the Dolphin emulator for years. It is a lossless format that allows for fast loading. While still supported, it has largely been superseded by newer methods. 3. RVZ (.rvz) — The Gold Standard

Compression techniques strip away this useless padding, leaving only the essential game files. Top Compression Formats for GameCube

The GameCube remains one of the most beloved consoles in gaming history, housing masterpieces like Metroid Prime, Super Smash Bros. Melee, and The Legend of Zelda: The Wind Waker. However, as digital preservation becomes more popular, players often face a storage hurdle. Standard GameCube disc images (ISO files) are consistently 1.35 GB, regardless of how much actual data the game uses. This has led to a massive demand for highly compressed GameCube ROMs. Understanding the 1.35 GB Standard