CD player in 1970. Following litigation, Sony and Philips licensed Russell's patents (then held by a Canadian company, Optical Recording Corp.) in the 1980s. The Compact Disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals. Prototypes were developed by Philips and Sony independently in the late 1970s. In 1979, Sony and Philips set up a joint task force of engineers to design a new digital audio disc. After a year of experimentation and discussion, the "Red Book" CD-DA standard was published in 1980. After their
Stephen Philips Stephen Philips Stephen Philips is an ambient drone musician who has releases on such major ambient labels as Hypnos, Blue Water Records, Gears of Sand, and his own record label, Dark Duck Records. Philips has been producing and releasing music since 1988 on his own label as well as other indie ambient labels, and also collaborating with many other ambient artists such as Austere, Rigel Orionis, IXOHOXI, Numina, Ben Fleury-Steiner, Isomorph, Palancar, and others. He is also the major contributor to his own Drone Download Project series of online releases which are then put together as CD compilations at the