videodisc
A videodisc is an analog optical disc used to store and play back video and audio. It was developed in the 1970s as a competitor to videotape and was the precursor to the modern DVD. Videodiscs use a laser to read data encoded in a spiral track on the disc's surface, which is then converted into video and audio signals.
The most well-known videodisc format is the LaserDisc, introduced by Philips and MCA in 1978. LaserDiscs were
Another notable videodisc format is the Compact Disc Interactive (CD-i), developed by Philips and Sony. CD-i
Videodiscs have largely been replaced by digital formats, such as DVDs and Blu-rays, which offer higher storage