Content information layer for an optical record carrier

G - Physics – 11 – B

Patent

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G11B 7/24 (2006.01) G11B 7/0045 (2006.01) G11B 7/26 (2006.01) G11B 23/40 (2006.01)

Patent

CA 2533664

An optical record carrier (2) and associated methods and devices are described. The carrier (2) comprises at least one user information layer (4a ,4b) arranged to be scanned by first radiation, and at least one content information layer (3a ,3b) or label layer. The content information layer comprises representing content information and having a first transmission for said first radiation and a second, lower transmission for a different, second radiation.

L'invention concerne un support optique d'enregistrement (2) et des méthodes et dispositifs associés. Le support (2) comprend au moins une couche (4a, 4b) porteuse d'informations sur l'utilisateur susceptible d'être balayée par un premier rayonnement, et au moins une couche (3a, 3b) de contenu ou couche d'étiquetage. La couche de contenu comprend des informations de représentation du contenu et présente une première transmissivité pour le premier rayonnement et une deuxième transmissivité, plus basse que la première transmissivité, pour un deuxième rayonnement différent du premier rayonnement.

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