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
Gay Sex in the 70s Gay Sex in the 70s Gay Sex in the 70s is a 2005 American documentary film about gay sexual culture in New York City in the 1970s. The film was directed by Joseph Lovett and encompasses the twelve years of sexual freedom bookended by the Stonewall riots of 1969 and the recognition of AIDS in 1981, and features interviews with Larry Kramer, Tom Bianchi, Barton Lidice Beneš, Rodger McFarlane, and many others. The film uses archival footage and interviews to describe the world of gay anonymous and casual sex in the settings of discotheques, bathhouses, bars and dark rooms, Fire