Audio CD is an umbrella term that refers to many standards of means of playing back audio on a CD.

It may specifically refer to:

[edit] Standards

• Compact Disc
• Red Book (audio CD standard), the original means of playing back audio on the medium.
• 5.1 Music Disc, an extension to the red book standard that uses DTS Coherent Acoustics 5.1 surround sound
• Super Audio CD, a format which competes with DVD-Audio
• MP3 CD, a disc that contains MP3 files in Yellow Book (CD standard) rather than converted from MP3 to Red Book format

[edit] See also

• DVD-Audio, a DVD that plays audio

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