Copy-protected optical media and method of manufacture thereof

Details Copy-protected optical media and method of manufacture thereof Copy-protected optical media and method of manufacture thereof

G - Physics

11

B

G11B 3/70 (2006.01) B32B 3/02 (2006.01) G11B 3/24 (2006.01) G11B 7/24 (2006.01) G11B 7/243 (2006.01) G11B 7/247 (2006.01) G11B 7/26 (2006.01) G11B 19/04 (2006.01) G11B 19/12 (2006.01) G11B 20/00 (2006.01) G11B 23/28 (2006.01)

Patent

CA 2415094

A method for fabricating read-only copy protected optical medium comprising: a substrate (54) having information pits (18) and lands (16) thereon and a light sensitive material (56) placed at a position capable of altering the data reading during copying of the optical medium but permitting read of the underlying data in the reading of the optical medium.

Cette invention se rapporte à un procédé servant à fabriquer un support optique non inscriptible protégé contre la copie, qui comprend un matériau photosensible dans des positions capables de modifier la lecture des données pendant le copiage du support optique, tout en permettant la lecture des données sous-jacentes lors de la lecture de ce support optique.

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