a car head un it would actually be genious! sony only make i think 2 minidisc in car changers, but only MDLP compatible, and with a hi-md head unit it would remove the need for a changer. go on sony, you know you want to, i will definately buy one! i also use my mz-nh900 for data storage, and an internal drive for my pc would be endlessly useful, are even a high speed usb external unit woould be just as good, as long as it could write faster than my portable player. dR. hIlLmAnN