CD-Text
| Media type | Optical disc |
|---|---|
| Encoding | 2 channels of LPCM audio, plus ITTS data |
| Read mechanism | 780 nm laser diode |
| Standard | Red Book |
| Developed by | Philips & Sony |
| Usage | Audio storage |
| Extended from | CD-DA |
CD-Text is an extension of the Red Book Compact Disc specifications standard for audio CDs. It allows storage of additional information (e.g. album name, song name, and artist name) on a standards-compliant audio CD.
The specification for CD-Text was included in the Multi-Media Commands Set 3 R01 (MMC-3) standard, released in September 1996 and backed by Sony. It was also added to new revisions of the Red Book. The actual text is stored in a format compatible with Interactive Text Transmission System (ITTS), defined in the IEC 61866 standard. The ITTS standard is also applied in the MiniDisc format, as well as in Digital Audio Broadcasting technology and Digital Compact Cassette.