Peter Carl Goldmark (born Péter Károly Goldmark; December 2, 1906 – December 7, 1977) was a Hungarian-American engineer who, during his time with Columbia Records, was instrumental in developing the long-playing microgroove 331⁄3 rpm phonograph disc, the standard for incorporating multiple or lengthy recorded works on a single disc for two generations.

The system, first demonstrated on August 29, 1940, and shown to the press on September 3 [4] used a rapidly rotating color wheel that alternated transmission in red, green and blue.

An improved RCA/NBC color system submitted in July 1953 became the industry standard chosen by the Federal Communications Commission (FCC) in December 1953.

A B&W prototype was demonstrated in 1969 (promising color playback in future models), but the invention floundered when it proved to be difficult and costly to manufacture.

CBS was also concerned about the potential of competition from home video devices, particularly those that could record — a fear that eventually proved prescient.