The primary advantage of WBFS over standard ISO files is . A standard Wii disc is always 4.37 GB, even if the actual game data only takes up 500 MB. WBFS "scrubs" away the useless filler data, drastically reducing the file size and allowing you to fit dozens of more games on a single drive. Managing Your Archive
This app allows you to insert your retail disc and rip it directly to an SD card or USB drive. Wii Wbfs Rom Archive
Games must be placed in a folder named wbfs at the root of the drive. The primary advantage of WBFS over standard ISO files is