rewritable data storage medium

rewritable data storage medium

  • CN 100,429,714 C
  • Filed: 02/09/2001
  • Issued: 10/29/2008
  • Est. Priority Date: 02/23/2000
  • Status: Active Grant
First Claim
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1. a rewritable data storage medium (1), its have be provided with tracking structure (8) with track but regenerative recording layer (9), but described regenerative recording layer (9) has data recording area (5), be different from data recording area (5) and the wiped identification marking (3) in the internal diameter identification marking zone (4) before of this data recording area (5) with being present in, the described identification marking (3) of wiping is crossed over a radial width, the width of several tracks of the tracking structure (8) in this radial width and the described data recording area (5) is near equating, it is characterized in that, data recording area (5) has first tracking structure (8 '"'"') of spiral groove shape, and identification marking zone (4) have second tracking structure that in fact is different from first tracking structure (8 '"'"') (8 ").

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