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An early optical videodisc technology for movies and training. Introduced in 1978, Pioneer LaserDisc players came out two years later and became the choice for commercial use. Never widely used, by the 1990s, LaserDiscs were superseded by Video CDs and then DVDs.

LaserDiscs Were Analog
Based on LaserVision (combination of MCA Disco-Vision and Philips Video Long Play), the LaserDisc recorded an analog composite video signal on a continuous, spiraling track (see CLV). Each side of the 12" platter held one hour of video in 108,000 frames.

For interactive training and games, a circular track held one video frame (see CAV), and 54,000 frames provided 30 minutes of video per side. The first LaserDiscs recorded analog audio, but digital audio was later added, and newer players supported multiple language soundtracks. See CED.

Pioneer LaserDisc Player
The LaserDisc platter looks like a monster next to a DVD. Nevertheless, in the 1980s, the LaserDisc was very high tech.
References in periodicals archive ?
So this game, "Dragon's Lair," relied on traditional cartoons recorded on LaserDiscs, which featured much faster random access than videotape.
The image quality of DVDs is comparable to that of laserdiscs, but because of its size, DVDs are more durable and portable.
Like other recent DVD releases of Spielberg movies such as "Jaws" and "Jurassic Park," this DVD offers no audio commentary and nothing new from the laserdisc edition of 1998.
So I made a barcode linked to video of the downing of the USS Arizona from a laserdisc, and put it in the book.
I use slides and large reproductions, but there are some lessons in which I like to vary presentations with selections from laserdiscs, CD-Roms, videos, and closeups of art techniques (such as pencil shading) using the camcorder.
Laser Video Distributors and operator of Digitainment, a store that sells DVD and laserdiscs, warns Studios not to follow this practice with DVD.
LLT has determined that the laserdiscs, CD-ROMs, and Internet resources featured in the catalog are innovative, practical, and useful for teaching to current educational goals and objectives.
They had the luxury, as a laserdisc company, of getting the business of most of the studios who only had their toe in the water in laserdiscs,'' said Scott Hettrick, editor-in-chief of Video Business, an industry trade publication.
Extras include the highly informational, hourlong docu "Ben-Hur: The Making of an Epic," from the 1994 laserdisc, with helpful contributions from Gore Vidal, Catherine Wyler, editor Ralph E.
BEIJING -- China said that in 1996 it has confiscated more than 10 million pirated compact discs, laserdiscs and audio and video tapes.
Voyager also produces the Criterion Collection line of laserdisc programming, which Image distributes exclusively.
The companies have a long history together, dating back to Image's days as a laserdisc producer, and have reteamed to push Playboy Home Video's 200-plus title library in new formats.