laserdisc

Laserdisc (LD) was the first commercial optical disc storage medium, and was used primarily for movies for home viewing.During its development, MCA, which owned the technology, referred to it as the Reflective Optical Videodisc System; changing the name once in 1969 to Disco-Vision and then again in 1978 to DiscoVision (without the hyphen), which became the official spelling. MCA owned the rights to the largest catalog of films in the world during this time, and they manufactured and distributed the Discovision releases of those films under the "MCA DiscoVision" label beginning on December 15 1978.
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