Optical storage medium in which sector address information is recorded using MSR techniques
AssigneeFujitsu Limited
InventorYoshiyuki Nanba
Life of this patent
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Abstract
A storage medium stores information on a plurality of tracks formed thereon, each of the tracks being divided into a plurality of sectors. The storage medium includes a physically formed sector beginning identifier provided at a leading portion of each sector, and an information storing portion. The information storing portion, another sector address portion at the trailing end of the information storing portion, includes at least one sector address portion at a leading end of the information storing portion, another sector address portion at the trailing end of the information storing portion, and a data portion provided between the two sector address portions.
Claims3
A method of recording and retrieving information from/to a recording medium partitioned into plural sectors, where each sector includes a start section identifier at the leading end of each sector, followed by a data portion, a first sector address portion being provided at a leading end of the data portion, and a second sector address portion being provided at a trailing end of the data portion, each of the first and second address portions storing a sector address of the sector, said method comprising the steps of:
- writing data to a target sector in a target track;
- and
- verifying that the head was positioned over the target sector during said writing step using the first and second sector address portions of the target sector.
Dependencies are inferred from the claim text.