Once extracted, verify that the game file ends in .rvz , .wbfs , .iso , or .gcm .
: An older Dolphin-specific format that provides decent compression but is largely being replaced by RVZ.
, it supports lossless compression and saves significant space. GCZ (GameCube Zip)
Click Convert . Dolphin will create a highly compressed version of the game in your folder. You can safely delete the old, bulky ISO afterward. The Risks of Downloading "Highly Compressed" Files Online
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Take control of your game collection today—compress it, optimize it, and play it to its fullest.
Never run an .exe file disguised as a game. Dolphin games should only end in .iso , .wbfs , .rvz , .gcm , or .ciso .
dolphin-tool convert -i "Super Mario Galaxy.iso" -o "Super Mario Galaxy.rvz" -f rvz
Keep the internal resolution at 1x (Native) if your device struggles during heavy asset-loading sequences. Safety and Security Warnings Once extracted, verify that the game file ends in
Leave the compression settings at default (Zstd at level 5 offers the best balance of speed and size).
Click on Convert File... from the context menu. Choose RVZ: In the format dropdown menu, select RVZ .
Created by the Nintendo Toolkit, this format strips out all non-essential data to create the smallest possible file for archiving. While highly compressed, it sometimes requires extra processing power to run or convert back to ISO.
If you choose to download pre-compressed games, protect your device by following these safety rules: GCZ (GameCube Zip) Click Convert
Ultimate Guide to Dolphin Games Highly Compressed: Play GameCube and Wii on Any Device
Software like 7-Zip or WinRAR compresses the remaining data into formats like .7z , .zip , or .rar .
A: Dolphin is a disc image emulator, not an archive manager. It needs direct, random access to the game's file structure. An RVZ file is a specialized disc image , not a simple archive. While you could put your games in a ZIP file, you would have to unzip them to a temporary folder every time you wanted to play, which is slow and impractical. Dolphin does not support this.