The session start information indicates whether or not the new sequential recording unit is {TAIL ~ a start} of {HEAD ~ the new session} 
The session start information indicates whether or not the new sequential recording unit is { TAIL ~ a start } of { HEAD ~ the new session }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD