David Gregg & James Russell Invent the Laserdisc

The Laserdisc (videodisc) was invented and originally called "Videodisk" using a transparent disc by David Paul Gregg in 1958, and by James Russell in 1965. It was enhanced by Philips Electronics in 1969 by using a videodisc in reflective mode. The purchaser of Gregg's patents, Music Corporation of America (MCA) and Philips first publically demonstated the videodisc in 1972. 

Laserdisc technology later became the basis for compact discs (CDs).