I have a WD 640GB MyBook and I originally formatted the entire 640GB using WBFS for backups. I then realized I will never own 150 games anyway so I partitioned the drive to 500GB (WBFS) and 140GB (FAT32). I would like to store Homebrew on the small partition. Things like FCEUGX roms and stuff.

I tried to store a few roms on it and launch FCEUGX and load from USB, but I get an error saying no USB device found because my primary partition is formatted for WBFS...

Any ideas?