Optical disc medium and data recording method and apparatus
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United States of America Patent
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Apr 24, 2012
Grant Date -
Sep 2, 2010
app pub date -
Mar 1, 2010
filing date -
Jun 8, 2001
priority date (Note) -
Expired
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Abstract
An optical disc medium and corresponding optical recording method and optical recording apparatus. The optical disc medium comprises a substrate on which a shape according to modulated information data has been formed, and a coating film formed on the substrate. Known data is recorded in a predetermined location of the information data, with the known data being rewritten as postscript information by recording a postscript portion to the coating film to alter a portion of the known data, wherein the postscript information comprises readable non-error data.
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