Yes, i had this problem too. what i did, i took another flash drive with ntfs filesystem and it worked all fine. so i have one flash drive with fat32 system for nintendodont and another one with ntfs for wii. hope it helps, try.
Thanks for the tool, soldered and connected everything in 20 minutes, i didnt have uno or nano arduino but old one arduino due and flashed nano version everything works, thanks again!
this time they better not say "next update will have all nice features" ... like we did not hear that all year long, this time the hold is strange, and what was the problem with prototype that it is not released for so long, we seen the video like month ago.