The LaserDisc was introduced in 1978 as “Discovision” by MCA and Philips. The first LaserDisc sold in North America was the film “Jaws.” Now obsolete, it was the direct forerunner of the CD and DVD.
Sometimes it’s better to borrow than invent. DEC worked with Philips and Sony to adapt their music CD for use as a read-only, optical storage medium for distributing software in high volumes.
David Paul Gregg’s original optical disk for video, patented in 1961, was read-only. Today, many CD and DVDs are rewriteable.
The Digital Video Disc (DVD) format was introduced in 1995 by a consortium that forced a compromise between two competing groups. Its successor is the Blu-ray disc.View Artifact Detail
Compact Disc (CD)
The Compact Disc (CD) was developed by Sony and Philips in 1982 for distributing music. DEC worked with them to store computer data, and it became the standard distribution media for software.View Artifact Detail