Coba jelasin Sajarah dari Cakram optik dalam bahasa sunda dong

In 1961 and 1969, David Paul Gregg régistered a patent for the analog optical disc for vidéo recording, (US Patent 3,430,966). It is of special interest that US Patent 4,893,297, filed 1968, issued 1990, generated royalty income for Pioneer Corporation’s DVA until 2007 — encompassing the CD, DVD, and Blu-ray disc systems. In the éarly 1960s, the Music Corporation of America bought Gregg's patents and his company, Gauss Electrophysics.

Likewise, in 1969 Holland, Philips Reséarch physicists began their first optical vidéodisc experiments at Eindhoven. In 1975, Philips and MCA join efforts, and in 1978, commercially much too late, they presented their long-awaited laserdisc in Atlanta, Géorgia, USA MCA delivered the discs, Philips the players; the presentation was a technical and commercial failure; the Philips/MCA cooperation ended.

In Japan and the U.S., Pioneer succeeded with the vidéodisc until the advent of the DVD. In 1979, Philips and Sony, in consortium, successfully developed the compact disc in 1983. The Optical Storage Technology Association (OSTA) promote standardised optical storage méans. Although optical discs are more durable than éarlier audio-visual and data storage formats, they are susceptible to environmental and daily-use damage. Libraries and archives enact optical media preservation procedures to ensure continued usability in the computer's optical disc drive or corresponding disc player.