Abstract: A device for preventing and controlling copying of data from an optical storage disc utilizing physical modifications in or on a storage capable optical disc. Also described is, a method for authenticating and controlling reading or copying of information or data in or on optical discs as, for example, wherein a locus on or in the optical storage disc is initially read to produce a signal and is then re-read by a reader to produce a second signal. The signal detected upon re-reading is different from the signal that is detected upon initial sampling.

Abstract: An optical medium piracy system employing a state-change material in association with a digital data indicia, wherein when state-change material is activated to change state, the optical medium moves from an unreadable to a readable condition, or from a less readable to more readable condition.

Abstract: 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.

Abstract: Light sensitive materials applied in shipping materials, including security seals and tear tape, for authentication, discrimination and recognition of items.

Abstract: A digital video optical recording medium comprising an optical state change material in the VOB file structure.

Abstract: Copy-protected optical medium utilizing a composition comprising a transient optical state change security materials constrained to change the optical state light absorption at a wavelength of about 400 nm and an electron transfer agent.

Abstract: Through embodiments an optical medium and method of fabricating the optical medium including content replication deterrent features is disclosed. The medium includes protective features for preventing the unintentional activation of the content replication deterrent features by the ambient environment.

Abstract: Through embodiments, an optical medium is disclosed which includes features for presenting alphanumeric text and graphics which can be made discernable or indiscernible.

Abstract: A method for providing content replication deterrence for an optical disc by means of detecting changes of state of an optical state change security material placed on the disc.

Abstract: An article of manufacture comprising an optical disc readable by an optical reader. The disc provides content replication deterrence by placing an optical satte chance security material in the tracking control region of the disc.

Abstract: An article of manufacture comprising an optical disc readable by an optical reader. The disc provides content replication deterrence by placing an optical satte chance security material in the tracking control region of the disc.

Abstract: An optical medium designed to reduce unauthorized read and theft, dye systems useful in making such discs, and methods of select application of the dye systems to recording medium.

Abstract: An article of manufacture comprising an optical disc readable by an optical reader. The disc provides content replication deterrence by placing an optical state change security material in the tracking control region of the disc.

Abstract: In embodiments, 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.

Abstract: In embodiments, 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.

Abstract: Copy-protected optical medium utilizing a composition comprising a transient optical state change security materials constrained to change the optical state light absorption at a wavelength of about 400 nm and an electron transfer agent.

Abstract: A copy-protected optical medium comprising transient optical state change security materials that demonstrating an optical state change when exposed to the wavelengths of from about 770 nm to about 830 nm.

Abstract: A method and system for providing copy-protected optical medium using transient optical state change security materials capable of changing optical state and software code to detect such change in optical state.

Abstract: A computer-readable medium having material at a select position therein and containing instructions for controlling an optical reader to cause the optical reader to re-read the position having the material one or more times to elicit a measurable parameter at such position.

Abstract: Light sensitive materials applied in shipping materials, including security seals and tear tape, for authentication, discrimination and recognition of items.