Abstract: A piracy protection digital recording medium comprising a polymeric layer incorporating an optical state change material in conjunction with a cationic photoinitiator.

Abstract: A storage case of storing optical digital data storage media, the case including a cover with a defined area therein that permits transmission of certain energy to the medium stored therein while the area of the cover outside of the defined area does not.

Abstract: An optical media device comprises a mask layer placed over a data layer, and that includes chemical ingredients designed to render the data layer unreadable by an optical reader in a first initial state, and allow the data layer to be read when converted to a second state. The mask layer is optically opaque in the first state, and is optically transparent in the second state. The chemical ingredients include a dye that absorbs light in the visible light and/or optical reader spectrum, and a further chemical that is activatable to shift the dye's absorption wavelength so the data layer can be read by the optical reader. The activation source is radiative emission having a wavelength different from that of visible light and/or the optical reader. The activation source can be used at the point of sale of the device to render the device readable upon purchase.

Abstract: Systems and methods for confirming the authorization of a person seeking tomake a transaction over a computer network system using algorithms to determine whether a digital recording medium has a fingerprint associated with a medium permitted to allow a transaction to validly occur.