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