Not necessarily. You put a 60 GB drive in your computer, format it, load the operating system, how much do you have left? Same thing with this radio. The radio software displays the capacity left for your music/photos. The rest of the drive is reserved for Nav maps and applications.. grace notes.. voice commands, POIs perhaps. In other words, its a 30 GB unformatted drive, you loose some capacity in formatting, then take away all the space for the operating system, applications, and data, and you are left with 11GB for your stuff. 19GB for the radio, 11GB for you
Many radios do better, but the 730 does not.