By way of example, the drive components may include {TAIL ~ a laser}, light sensing diode, and a spindle motor, and the transport components may include {HEAD ~ a movable tray} 44 
By way of example , the drive components may include { TAIL ~ a laser } , light sensing diode , and a spindle motor , and the transport components may include { HEAD ~ a movable tray } 44
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH