For anyone looking to take their GameCube collection on the go, highly compressed ROMs (specifically the RVZ format) are the absolute gold standard for balancing storage efficiency with performance. The Verdict: Essential for Handheld Gaming

. But for Elias, 90% wasn't enough. He wanted to go smaller. He ran his custom script. The progress bar crawled. Super Smash Bros. Melee : 1.2 GB down to 200MB. The Legend of Zelda: The Wind Waker : 1.1 GB down to 150MB.

Step 3: Convert Your ISOs to Highly Compressed RVZ

If you legally own GameCube discs, dump them using a Wii or a compatible disc drive. Then convert:

GCZ (Older Dolphin Format): A legacy compressed format. It is still functional but has been largely surpassed by RVZ, which offers better compression ratios and features.

The Ultimate Guide to Highly Compressed GameCube ROMs for Portable Gaming For handheld enthusiasts using devices like the Steam Deck Android smartphones

The Ultimate Guide to Highly Compressed Portable GameCube ROMs

Important Note: Always ensure you are using the latest version of the Dolphin emulator to ensure compatibility with .rvz files, as older builds may not recognize the format.