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On Sat, Dec 17, 2011 at 6:35 PM, Mark Knecht <markknecht@×××××.com> wrote: |
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> |
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> I guess you are saying that either the CSS keys are completely |
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> unnecessary, or that the DVD-RW drive can read but not write to the |
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> area where they are stored? |
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|
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I think, typically, when a DVD with copy-protection is manufactured, |
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it is sent on DLT tape or a special "DVD for Authoring" disc which |
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contains the unencrypted movie but also an extra area with encryption |
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data needed by the disc manufacturer who can press the real, encrypted |
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DVDs. In other words you can't burn your own CSS-encrypted DVD at |
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home. :) |
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