Originally Posted by UCF w00t
Check your rip settings. Make sure that it's ripping to MP3 and not AAC (the default). Other than that... no clue. Maybe it just needs to be re-indexed? I don't have my car or the manual but I would think there's a way to force this. If nothing else, disconnecting the battery for a few minutes to clear the settings should do it.
Well, the files are all mp3. I have taken the thumb drive out and have let it reindex several times with the same effect.