OPTICAL DISC HAVING AN ACTUAL RECORDING FIELD AND A GAP FIELD

A gap field positioned before an actual recording field has a length randomly arranged so that the recording start position is randomly shifted.
  · Non-recording fields comprised of a gap field and a buffer field are arranged before and after an actual recording field respectively in a sector.
  · The gap field has a length set based on a random number, and a length of the buffer field is arranged so that a sum of the lengths of the gap and buffer fields is constant.
  · Therefore, a recording start position randomly changes in each sector.

[References]
· DVD Specifications for Rewritable Disc: Part 1 Version 1.0, 2.0, Index 5.2.1.2

[Offering Patent]
· USP6,128,260
· Others (JP, TW, GB, DE, FR, NL, KR, CN)
 





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