The Ultimate Guide to Highly Compressed Wii Games Wii game "compression" typically refers to —a process that removes "garbage data" or "padding" from a standard 4.37 GB disc image. While a standard uncompressed ISO always takes up the full size of a DVD, compressed formats like WBFS or RVZ store only the actual game data, which can reduce a 4 GB file to as little as 300 MB for simpler titles. Popular Compression Formats
| Format | Best For | Compression Ratio | Speed | | :--- | :--- | :--- | :--- | | | USB Loaders on real Wii hardware | 40% – 70% of original | Very Fast | | CISO | Older Emulators / PSP | 50% – 80% | Fast | | RVZ | Dolphin Emulator (PC/Android) | 30% – 60% | Fast (Decomp on the fly) | | GCZ | Dolphin Emulator (Archive) | 40% – 75% | Slow to compress | highly compressed wii games
Downloading Wii games you don’t own a physical copy of is illegal in many regions. Always dump your own games using CleanRip or USB Loader GX’s disc installation feature, then compress them yourself using tools like: scrubbing The Ultimate Guide to Highly Compressed Wii