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
The '70s Anthology The '70s Anthology The '70s Anthology is a 2002 two compact disc set of many of the songs recorded by the 1970s groupings of The Supremes. The set features 42 tracks, of which 10 had never been released, and 6 were appearing in extended or unedited forms. The set features a 24-page booklet with liner notes written by Mary Wilson, who was the only member in every version of The Supremes through 1977. Probably the most notable of the new material are the songs "Oh My Poor Baby", "Make It With You", "I'll Let Him Know That I Love Him",