Been trying to upload different video game wav files for notification sounds. Ive had Zelda ones on there forever and they worked great. I tried to upload others but they were in the midi format so they wouldnt work. I tried converting them but that was a failure too. After this the Zelda WAV files no longer play. Why would this happen? Ive tried removing the files and putting them back on the Pre but that doesnt work either. Other music files (MP3) work fine, but the WAV files should work.

What can I do to restore the WAV file sound?