Creating game backups requires owning the original discs. Distribution of copyrighted games is illegal.

If you are setting up a USB drive for a real Wii console, the folder structure is strict. Games must be placed here: [Drive]:\wbfs\Game Name [GameID]\GameID.wbfs Example: \wbfs\Super Mario Galaxy [RMGE01]\RMGE01.wbfs (Wii Backup Manager handles this folder structure automatically for you).