For the record, I can't be sure that it's mp3tofid corrupting the files because it doesn't actually do anything with them, but something very strange is happening. I run a script on the empeg and it synchronizes the appropriate folders with rsync, transferring the original files; not the symlinks. The problem is - at least half of the files report "Invalid File Format" when selected on the player and do not work. If I were to sync the exact same source files with jemplode, they would work just fine. So what gives, here? Possible that I'm doing something wrong with mp3tofid? I'm running it on my Mac, perhaps I should try a legitimate Linux box? For what it's worth, it seems to be whole albums and not just random tracks; i.e. the whole album plays, or the whole album doesn't. Not sure if that's just a coincidence or not. I would post a log, but it's not much to see. Any thoughts?