SpectraDisc Awarded Patent For Limited Play DVD Technology

PROVIDENCE, R.I. - January 21, 2002 - SpectraDisc Corporation today announced that it had been issued US Patent #6,338,933 for "Methods and Apparatus for Rendering an Optically Encoded Medium Unreadable.

SpectraDisc is spin-out company of Spectra Systems Corporation that has developed a limited-play digital disc suitable for mass manufacturing and distribution. The limited-play disc consists of a DVD or CD that can only be read or played for a prescribed period of time after opening the package. The duration of play can be controlled from minutes to weeks by modifying the composition of the coating materials.

The limited-play DVD format is a compelling alternative to video rental as it presents indisputable advantages to consumers, content providers, retail stores, distributors and disc manufacturers. For the consumer, a limited-play disc at the same price as a rental offers a quantum leap in convenience and flexibility of use.

Commenting on the award, Nabil M. Lawandy, Ph.D., CEO and co-inventor SpectraDisc's technology stated, "This is an important milestone in our commercialization of this product. As we have seen the dramatic success in adoption of DVD as a mass-market video media, this patent will allow us to pursue commercial agreements for the distribution of a limited play optical media.

SpectraDisc Corporation, headquartered in Providence, RI is spin-out subsidiary of Spectra Systems Corporation, with offices and laboratories in East Providence, Rhode Island. SpectraDisc is focused on the development of a limited-play CD, CD/ROM and DVD product for the entertainment, software and advertising industries.

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