Enhanced CD

Enhanced CD

Enhanced CD, also known as CD Extra and CD Plus, is a certification mark of the Recording Industry Association of America for various technologies that combine audio and computer data for use in both compact disc and CD-ROM players.

The primary data formats for Enhanced CD disks are mixed mode (Yellow Book/Red Book), CD-i, hidden track, and multisession (Blue Book).

The technology was popular in the late 90s with the increase of computer usage. Music CDs often included music videos, wallpapers, and other various content. However, more recently, acts wishing to include enhanced content often include a DVD instead, with the advantage of it playing in both a computer's DVD-ROM drive and in a standard DVD player.

Problems

Sometimes computer CD-ripping programs (particularly cdparanoia) have problems ripping some enhanced CDs, especially those that have the data in a separate session after the audio section. These CDs have the data 11,400 sectors (2m32s) after the audio, but some CD rippers may try to rip this blank section with the last track; the end result is that the ripper stalls during the last track, or simply reports errors.

ee also

*DualDisc
*Super Audio CD
*Mixed Mode CD

External links

* [http://www.riaa.com/issues/audio/standards.asp Standards and Coding] (RIAA)
* [http://www.musicfan.com/ecd/index.php Enhanced CD database]
* [http://www.cdizz.com/ Web or Internet Enhanced CD] CDizz Player
* [http://www.bandlink.com/ Web or Internet Connected Enhanced CD] Bandlink CD
* [http://www.musicfan.com/fact.pdf Enhanced CD Fact Book] (PDF file)


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