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However, the FAT32 file system has a strict maximum file size limit of . This makes it impossible to store a single, unsplit SSBB file on a standard homebrew-ready USB drive or SD card. The Solution: WBFS Splitting
A split WBFS game consists of:
Using split command is risky because USB loaders expect specific extensions ( .wbf1 , not .wbfs.partaa ). Avoid manual splitting unless you rename correctly. super smash bros brawl wbfs split