Super Audio CD
Read-only optical disc for high-fidelity audio storage / From Wikipedia, the free encyclopedia
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Super Audio CD (SACD) is an optical disc format for audio storage introduced in 1999. It was developed jointly by Sony and Philips Electronics and intended to be the successor to the compact disc (CD) format.
Quick Facts Media type, Encoding ...
Media type | Optical disc |
---|---|
Encoding | Digital (DSD) |
Capacity | 4.38 GiB / 4.7 GB (Single Layer and Hybrid) 7.92 GiB / 8.5 GB (Dual Layer) |
Read mechanism | 650 nm laser (780 nm for the CD layer of a Hybrid disc) |
Standard | Scarlet Book |
Developed by | Sony & Philips |
Usage | Audio storage |
Extended from | Compact Disc Digital Audio |
Released | 1999; 25 years ago (1999) |
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The SACD format allows multiple audio channels (i.e. surround sound or multichannel sound). It also provides a higher bit rate and longer playing time than a conventional CD.
An SACD is designed to be played on an SACD player. A hybrid SACD contains a Compact Disc Digital Audio (CDDA) layer and can also be played on a standard CD player.