Method and apparatus for controlling access to storage media

A method and apparatus for controlling access to a storage medium, such as an optically readable medium. Light sensitive or other materials that are adapted to change state and affect reading of a storage medium are used to control access to data that may be stored on optical medium and/or to contro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Selinfreund, Richard H, Goyette, Donald Roland, Drew, Jeffrey M, Vig, Rakesh
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method and apparatus for controlling access to a storage medium, such as an optically readable medium. Light sensitive or other materials that are adapted to change state and affect reading of a storage medium are used to control access to data that may be stored on optical medium and/or to control use of the medium.