Optical audio disc

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An audio optical disc is an optical disc that stores sound information such as music or speech.

It may specifically refer to:

Audio CDs[edit]

  • Compact disc (CD), an optical disc used to store digital data (700 MB storage)
    • Compact Disc Digital Audio (CD-DA), a CD that contains PCM encoded digital audio in the original "Red Book" CD-DA format
    • 5.1 Music Disc, an extension to the red book standard that uses DTS Coherent Acoustics 5.1 surround sound
    • Compressed audio optical disc, an optical disc storing MP3s and other compressed audio files as data, rather than in the Red Book format

Audio DVDs[edit]

  • DVD, 4 GB single layer, 8 GB double layer storage

Audio Blu-rays[edit]

  • Blu-ray, 25 GB single layer, 50 GB double layer
    • BD-Audio, a Blu-ray disc that is capable of audio-only playback

See also[edit]