The Laserdisc (videodisc) invented and originally called "Videodisk" using a transparent disc by David Paul Gregg in 1958 and by James Russell in 1965, was enhanced by Philips Electronics in 1969 by using a videodisc in reflective mode. Music Corporation of America (MCA), purchaser of Gregg's patents, and Philips first publically demonstated the videodisc in 1972 and first made the technology available on the market in Atlanta, Georgia on December 15, 1978 with the MCA DiscoVision release of the film Jaws. Laserdisc technology became the basis for compact discs (CDs).
