The compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony to store and play digital audio recordings. It uses the Compact Disc Digital Audio format which typically provides 74 minutes of audio on a disc.

Jan 13, 2025 · Compact disc, a molded plastic disc containing digital data that is scanned by a laser beam for the reproduction of recorded sound and other information. Learn more about the history of the compact disc, starting with its commercial introduction in 1982.

Compact Disc Digital Audio (CDDA or CD-DA), also known as Digital Audio Compact Disc or simply as Audio CD, is the standard format for audio compact discs. The standard is defined in the Red Book technical specifications, which is why the format is also dubbed "Redbook audio" in some contexts. [1]

Mar 12, 2019 · Forty years ago the world got its first glimpse of what would become one of the most important music devices in history - the compact disc (CD). The CD was invented in 1979.

Jul 28, 2023 · What is a compact disc? Compact discs are small plastic discs used to store digital information, such as music, video, etc. When was the compact disc invented? October 1982. How much did compact discs cost? $1,000 in 1982. What are compact discs used for? Compact discs were initially used for audio and data storage. What is an example of a ...

A compact disc is a portable storage medium that can record, store and play back audio, video and other data in digital form. A standard compact disc measures 4.7 inches, or 120 millimeters (mm), across, is 1.2 mm thick, weighs between 15 grams and 20 grams, and has a capacity of 80 minutes of audio, or 650 megabytes ( MB ) to 700 MB of data.

Mar 6, 2024 · The invention of the standard compact disc revolutionized the way music, data, and later video were stored and distributed, marking a significant leap from analog to digital storage media. Developed jointly by Philips and Sony, the CD format was finalized in 1982 and famously documented in the Red Book standard.

Aug 29, 2023 · Compact disc is portable storage devices used for storing digital data like recording, storing, and playing video, and audio. Compact Disc can be explained as a disc-like memory device made from plastic material.

Jun 8, 2018 · compact disc (CD) Disc used for high-quality digital sound reproduction. It is a plastic disc with a shiny metal layer and a transparent protective plastic coating. The sound signal consists of millions of minute pits, pressed into one side of the metal.

CD's astounding ability to work at 100% modulation without distortion, unlike LPs that became more distorted as they got louder, works against the CD today where most pop producers hit the disc as loud and as hard as they can.