Discs and defect management method thereof

Discs and defect management method thereof

  • CN 100,520,920 C
  • Filed: 11/10/1999
  • Issued: 07/29/2009
  • Est. Priority Date: 11/10/1998
  • Status: Active Grant
First Claim
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1. , a kind of defect management method of CD, described CD constitutes its data field by a plurality of sections, can expand the supplementary spare areas of distribution after main spare area that this data field is assigned with when containing initialization and the initialization, and described method comprises step:

  • When the CD initialization, calculate the preliminary dimension that described main spare area and supplementary spare areas can be assigned with;

    When the CD initialization, distribute the active and standby district that uses, and utilize the alternate sector slippage that is positioned at this district to replace the defective sector that is produced;

    Expansion distributes supplementary spare areas after the CD initialization, and utilizes the alternate sector linearity that is positioned at this district to replace the defective sector that CD was produced between the operating period;

    Wherein, be positioned at the defective sector of described supplementary spare areas and the corresponding sector that is replaced, and the supplementary defect list item that the sector that is replaced is logined remains unchanged not as alternate sector,Wherein, the CD after initialization when described main spare area is not enough to the replacement of defective sector, distributes described supplementary spare areas between the operating period, and utilizes the alternate sector of this supplementary spare areas to replace the defective sector that is produced,Wherein, slippage was replaced required minimum spare area and is used for the linear afterwards an amount of spare area of replacing of CD initialization when described main spare area had the CD initialization,Wherein, described main spare area is used for slippage and replaces required minimum spare area and have at least and the sector number of login at the main defect table item number as much of defect management information.

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