Systems and methods for optical media modification

Details Systems and methods for optical media modification Systems and methods for optical media modification

G - Physics

11

B

G11B 20/00 (2006.01) G11B 23/28 (2006.01)

Patent

CA 2515191

Theft, distribution, and piracy of digital content on optical media (software, video, audio, e-books, any content of any kind that is digitally stored and distributed) is often accomplished by copying it directly to another disc using commonly available copy tools and recordable optical media, or the copying of media to another mass manufactured disc. Methods which cause the copy process to become lengthy and inconvenient, or which produce copies that are significantly measurably different from the original and therefore be recognizable as copies, may deter or prevent an unauthorized individual from making copies. In addition, methods which generate an intended slow-down in the read process of the media can be used to authenticate the media at run time. This offers significant advantages to content creators who wish to protect their products.

Le vol, la distribution et le piratage de contenus numériques sur des supports optiques (logiciels, vidéo, audio, livres électroniques, ou tout contenu d'une quelconque sorte stocké et distribué sous forme numérique) se font souvent par copie directe sur un autre disque au moyen d'outils de copiage et de supports optiques enregistrables courants, ou par copiage de supports sur un autre disque de fabrication courante. Des procédés qui rendent le travail de copie long et peu pratique, ou bien qui produisent des copies de l'original sensiblement différentes, de manière mesurable, et qui peuvent donc être reconnues comme telles, peuvent dissuader ou empêcher un individu non autorisé de faire des copies. De plus, les procédés qui ralentissent sciemment le processus de lecture du support peuvent être utilisés pour l'identification dudit média pendant l'acte. Cette invention procure des avantages non négligeables pour les créateurs de contenus soucieux de protéger leurs produits.

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