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Write-once type optical disc, and method and apparatus for managing defective areas on write-once type optical disc

  • US 7,489,604 B2
  • Filed: 06/30/2006
  • Issued: 02/10/2009
  • Est. Priority Date: 09/26/2002
  • Status: Expired due to Fees
First Claim
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1. A method for managing a defective area on a recording medium, the recording medium including a data area and a lead in area, the data area including at least one spare area, the method comprising:

  • (a) detecting an existence of a defective area within the data area of the recording medium;

    (b) writing data written in the defective area onto a replacement area of the at least one spare area if the defective area is detected; and

    (c) writing defect management information associated with the defective area onto one of a plurality of defect management areas on the recording medium,wherein the defect management areas on the recording medium are allocated on the lead in area and within the at least one spare area of the recording medium and the defect management information is written onto a different area from an area of previous recorded defect management information within the defect management areas.

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