I just noticed recently that audio files don't have a position marker, yet video files do. Is this correct? Is there a way to get one? I have some books on tape and they are broken into 1 hour segments. It is a real pain in the ass to not know how far along you are when you stop, so I spend 5 min fast forwarding, rewinding trying to find a spot that I last remember. A progress bar would be very handy. Thanks.