Assuming I can fix the battery issue, this machine could also do with some new buttons as some of them have got pretty unreliable (very annoying when fast-forwarding as that can turn into 'skip past 4 podcasts'). Does anyone know the spec of the buttons in use or where to get replacements. I guess I could just measure them and try to find something from farnell or digikey, but hopefully others have gone before me?