Method and apparatus for establishing manufacturer-specific test writing parameters for writing of writable optical storage media

  • US 7,088,655 B2
  • Filed: 08/22/2003
  • Issued: 08/08/2006
  • Est. Priority Date: 09/18/1998
  • Status: Expired due to Fees
First Claim
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1. A method of establishing optimum test writing parameters for test writing of a writable optical storage media, which optimum test writing parameters are specific to both an optical storage media recording/reproducing apparatus and to a writable optical storage medium manufactured by a respective one of a plurality of media manufacturers and which optimum test writing parameters are established independently of and without being constrained by default test-writing reference power parameters pre-recorded in the writable optical storage media during its manufacture, the method comprising:

  • detecting information pre-recorded in a writable optical storage medium during its manufacture which uniquely specifies the writable optical storage medium'"'"'s respective manufacturer;

    performing a test writing parameter optimization on the writable optical storage medium to determine optimized test writing parameters for the writable optical storage medium, by writing test digital data to the writable optical storage medium while changing a light energy content, the light energy content being the writing power level and write strategy employed by the recording/reproducing apparatus when writing the test digital data to the writable optical storage medium;

    reproducing the written test digital data from the writable optical storage medium and, in accordance with said reproduction, determining an optimum test writing light energy content representing optimum test writing parameters having a reproducing characteristic specific to both the writable optical storage medium and the recording/reproducing apparatus, the determined writable optical storage medium and recording/reproducing apparatus specific optimum test writing parameters being thereby established with specificity to the recording/reproducing apparatus employed and separately of default test-writing parameters pre-recorded in the writable optical storage media during its manufacture; and

    storing the determined optimum test writing parameters specific to both the writable optical storage medium and the recording/reproducing apparatus in a memory of the recording/reproducing apparatus in association with the information specifying the respective manufacturer of the writable optical storage medium.

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