Verifying the integrity of a media key block by storing validation data in the cutting area of media
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United States of America Patent
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May 18, 2004
Grant Date -
Jul 4, 2002
app pub date -
Mar 30, 2001
filing date -
Dec 28, 2000
priority date (Note) -
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Abstract
A method for verifying the integrity of a media key block (MKB) by storing validation data in a validation area of a medium, such as a DVD-R or a DVD-RW. In one embodiment, validation data comprises a hash function on a media key block. In another embodiment, validation data comprises the Verification Data field of an MKB's Verify Media Key Record.
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