CD-Text

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Compact Disc Text

CD-Text is an extension of the Red Book Compact Disc specifications standard for audio CDs. It allows for 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.[1] It was also added to new revisions of the Red Book.[2] The actual text is stored in a format compatible with Interactive Text Transmission System (ITTS), defined in the IEC 61866 standard.[3] ITTS is also used by Digital Audio Broadcasting and the MiniDisc.

Support for CD-Text is common, but not universal. Utilities exist to automatically rip CD-Text data, and insert it into CDDB or freedb.[clarification needed]

Storage[edit]

The CD-Text information is stored in the subchannels R to W on the disc. This information is usually stored in the subchannels in the lead-in area of the disc, where there is roughly five kilobytes of space available. It can also be stored on the main program area of the disc (where the audio tracks are), which can store about 31 megabytes.[1] Since the R to W channels are not used in the Red Book specification of audio CDs, they are not read by all CD players, which prevents some devices from reading CD-Text information.[1]

Format[edit]

MMC-3 specifies 16 types. Of these, three are reserved and therefore they don't have keywords.

CD Text Keywords
Keyword Description Section Format
ARRANGER Name(s) of the arranger(s) Any Character
COMPOSER Name(s) of the composer(s) Any Character
DISK_ID Disc Identification information Any Binary
GENRE Genre Identification and Genre information Any Binary
ISRC ISRC Code of each track Track Character
MESSAGE Message from the content provider and/or artist Any Character
PERFORMER Name(s) of the performer(s) Any Character
SONGWRITER Name(s) of the songwriter(s) Any Character
TITLE Title of album name or Track Titles Any Character
TOC_INFO Table of Content information Any Binary
TOC_INFO2 Second Table of Content information Any Binary
UPC_EAN UPC/EAN code of the album Disc Character
SIZE_INFO Size information of the Block Any Binary

The character encoding is not specified, and there is no provision for indicating in the CD-Text data which encoding is in use. The original Sony authoring tools and specifications supported ASCII and two of its supersets, ISO-8859-1 and "MS-JIS". Annex J of the MMC-2 specification mentions only ASCII, but provides for "double byte character codes" to be indicated.

Software[edit]

  • AIMP can read CD-Text since version 2.50
  • Audiograbber has support for reading CD-Text to fill in artist/title information (if present) when ripping CD's
  • Brasero has support for CD-Text from version 0.5.90
  • burnatonce can edit and burn CD-Text.
  • cdrdao, Linux command line tool that supports writing CD-Text.
  • CDex can read CD-Text.
  • CDRWIN can burn CD-Text
  • Exact Audio Copy has support for reading CD-Text to fill in artist/title information (if present) when ripping CD's.
  • foobar2000 Since version 1.0 has support for reading CD-Text to fill in artist/title information (if present) when playing and ripping CD's.
  • fre:ac has support for reading CD-Text to fill in artist/title information (if present) when ripping CD's.
  • icedax, Linux command line tool that supports reading CD-Text.
  • ImgBurn can burn CD-Text. This information can be added/modified during the creation of a .CUE file.
  • IsoBuster copies CD-Text (if available) when a CD is ripped in raw format and saves it to a .cdt file.
  • iTunes 7 or higher supports burning (but not reading) CD Text. It is by default an unchecked option in the burning preferences.
  • K3b has support for reading and writing CD-Text on Linux.
  • MediaMonkey has full CD-Text Support.
  • Media Player Classic reads from CD-Text and will automatically display track title and author.
  • MusicBee audio player/organizer can read CD-Text when playing or ripping CDs.
  • Nero Burning ROM can burn CD-Text since version 5.5.10; its track saving utility can read CD-Text when ripping.
  • PowerISO has support for CD-Text from version 4.5
  • RealPlayer 10 supports reading and writing of CD-Text
  • Sound Juicer can read from CD-Text
  • Toast on Mac OS X has support for CD-Text.
  • VLC media player can read CD-Text on all platforms
  • Winamp has had support for reading CD-Text since version 5.31, but does not write CD-Text.
  • Windows Media Player 10 and higher with the WMPCDText plug-in supports reading CD-Text.
  • X-CD-Roast for Linux has had reading/writing support since version 0.98alpha10.
    • The underlying command-line utilities cdrecord/cdda2wav have support in (at least) version 2.01, but it must be enabled. See the documentation.

Hardware[edit]

  • JVC's Arsenal KD-AR400 automotive CD AM-FM receiver (briefly) displays CD-Text data
  • Pioneer CD Receivers support CD-Text
  • Professional Pioneer DJ CD players (CDJ-200/350/400/800/1000/2000, CMX-3000) support CD-Text, up to 48 characters are displayed on the latest CDJ-400 and CDJ-1000 MK3
  • Holden VE Commodore (2006>)
  • Sony Super Audio player SCD-CE595 supports it.
  • BMW/MINI automotive CD players will display CD-Text data.
  • Pioneer CDJ Line of Professional CD Players
  • Denon DN Line of Professional DJ CD Players

See also[edit]

References[edit]

  1. ^ a b c Unofficial CD Text FAQ
  2. ^ Approved Compact Disc Logo configurations
  3. ^ IEC 61866 standard, ed1.0

External links[edit]