.mp3 should definitely play.
But you need to make sure that you actually transferred mp3 files. There are also Mac Finder files that begin period underscore, ._01-SongOne.mp3 and are 0kb in size. Those are just index listings, not the music files themselves, even though (confusingly) they say .mp3.
You need to look at the files that are on the Fuze. A playable mp3 file should be about 1MB per minute of music
Message Edited by Black-Rectangle on 05-20-2010 08:45 AM
