Digital publication | Page 13

James Russell, an American inventor, came up with an alternative to then vinyl albums to store and play audio recordings. He filed for a product resembling a combination of laser, digital recording, and optical disc technologies in 1966. However, in 1980, Sony Corp and Philips Electronics obtained the license of the technology. The first CD player was released in the market in 1982, and it was the same time the format started to be used all over the world. The cost was high initially since only two factories manufactured them. Philips and Sony owned these factories. CDs were read-only but later started to allow people to record in them.

A CD comprises the smallest entity known as a frame, which can accommodate six complete 16-stereo samples. A-frame comprises 33 bytes, with 24 of them comprised of audio. Eight of the remaining nine bites serve as CIRC-generated error correction bytes, while the other one is the subcode byte.

CDs were common in the 1980s, and early 1990's when PCs could only store about 10 MBs of data. Since the development of computers that can store a lot of data, their use has greatly declined. However, their use started to decline effectively in 2010. However, the introduction of the DVDs in the market in 1995 started to outdo the CDs, hence their decline in demand.