Method and system for optical disc copy-protection

Details Method and system for optical disc copy-protection Method and system for optical disc copy-protection

G - Physics

11

B

G11B 7/00 (2006.01) B29D 17/00 (2006.01) G11B 19/12 (2006.01)

Patent

CA 2464808

A method and system for providing copy-protected optical medium using a substrate having information stored therein in information pits (5) and information lands (10, 11), wherein the information lands (10,11) comprise lands in two different planes. A reflective layer (12) covers the information lands (10) and an optically-changeable security material (16) is applied over the reflective layer (12).

L'invention concerne un procédé et un système pour réaliser un support optique protégé contre la copie au moyen d'un substrat contenant des informations stockées dans des cuvettes et des méplats, ces méplats se présentant sur deux plans différents.

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