To play these files on actual Nintendo Wii hardware, your console must be softmodded with the Homebrew Channel installed. Step-by-Step Setup to FAT32. Create a folder named wbfs in the root of the USB drive.
Modern USB loaders like USB Loader GX and WiiFlow are designed specifically to read these files. ISO vs. WBFS: Which should you use? File Size Always 4.37 GB (Large) Only actual game data (Small) Best For Archiving and burning to DVDs Playing on a modded Wii via USB Compatibility Universal (Emulators & Loaders) Native to Wii USB Loaders & Dolphin Preservation Excellent (exact copy) Poor (removes update partitions) Essential Tools for Your Toolkit wii roms wbfs