The Compact Disc, or CD, was invented by Philips and Sony in 1982. It was the first commercially successful digital audio disc format, and revolutionized the way music was consumed.

The CD was initially developed as a way to improve the sound quality of music recordings. The format could store significantly more data than traditional analog audio records, allowing for better sound quality. The CD also had the advantage of being immune to the static and distortion that often plagued analog recordings.

The CD was first commercially released in 1982. Sony and Philips marketed the format as a replacement for …