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Information recording and reproducing apparatus

  • US 20060230325A1
  • Filed: 04/05/2006
  • Published: 10/12/2006
  • Est. Priority Date: 04/07/2005
  • Status: Abandoned Application
First Claim
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1. An information recording and reproducing apparatus, comprising:

  • a reading and writing unit for reading and writing information in a recording medium that has a plurality of recording layers which layers are shaped like a disk, wherein a spare area is assigned to an inner circumference area of each of the recording layers for substituting for a defective area.

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