For each mass storage device type for which {HEAD ~ more than one mass storage device} exists, {TAIL ~ a device type menu} is provided including menu items corresponding to each of the mass storage devices of the device type 
For each mass storage device type for which { HEAD ~ more than one mass storage device } exists , { TAIL ~ a device type menu } is provided including menu items corresponding to each of the mass storage devices of the device type
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH