If you still want pure WBFS (legacy method):
In the context of Nintendo Wii emulation and digital preservation, WBFS stands for Wii Backup File System . It is a file format specifically designed to store Wii game data. wii sport wbfs
For a game like Wii Sports, which is incredibly lightweight, the difference is massive: ~4.37 GB Wii Sports WBFS Size: ~330 MB to 390 MB If you still want pure WBFS (legacy method):