The recording or reproduction is carried out for each unit of information at a rate at which {HEAD ~ the maximum quantity} of the digital image information in {TAIL ~ one group} can be processed on real time basis 
The recording or reproduction is carried out for each unit of information at a rate at which { HEAD ~ the maximum quantity } of the digital image information in { TAIL ~ one group } can be processed on real time basis
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH