Whether you rip your own disc using CleanRip or, in theory, source a backup elsewhere, the core remains: the WBFS format makes playing Mario’s tropical adventure on a Wii faster, cleaner, and more space-efficient.
(Wii Backup File System) format to enjoy the game on original Wii hardware or through emulators What is a WBFS File? Super Mario Sunshine Wbfs
The WBFS format was designed to solve storage issues on the Nintendo Wii. It is a "scrubbed" version of a game's disc image. Space Efficiency Whether you rip your own disc using CleanRip