Laserdisc

A domestic video system based around 12-inch discs roughly the size of a traditional LP. Despite offering appreciably higher quality pictures and sound than tape-based systems, laserdiscs never caught on in Britain - they were considered to be too expensive, they couldn't record, and it was impossible to fit an entire feature film onto one side, ne...
Found on http://www.screenonline.org.uk/education/glossary.html

LaserDisc

LaserDisc or (LD) is a home video format and the first commercial optical disc storage medium initially licensed, sold, and marketed as MCA DiscoVision (also known as simply `DiscoVision`) in North America in 1978. Although the format was capable of offering higher-quality video and audio than its consumer rivals, the VHS and Betamax videocasset.....
Found on http://en.wikipedia.org/wiki/LaserDisc
No exact match found