An object of the present invention is to provide {HEAD ~ a write once optical disc} and a method and apparatus for defining types of sessions and sequential recording ranges for {TAIL ~ the disc} 
An object of the present invention is to provide { HEAD ~ a write once optical disc } and a method and apparatus for defining types of sessions and sequential recording ranges for { TAIL ~ the disc }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL