w/ the latest official firmware and music manager (1.60), some of the songs i've uploaded have a bit of the begining cut off when played from the device. i'm sure that the mp3s are not corrupted (mp3trim) and only have id3v2 tags. i haven't had time to re-upload the songs in question... so i can't say that its random just yet.

btw, isn't there forums somewhere for the rio portable players line where this post would be more appropriate?