Specification
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Appendix A.
Glossary
CD-DA
Compact Disc - Digital Audio. The typical music CD is written with this CD format. At this
time, up to 74 minutes of music can be written on a CD. The corresponding standard is
the Red Book.
CD-I
Compact Disc - Interactive. This format allows the storage of different types of data such
as images, music or video on a CD. The process is defined in the Green Book.
CD-R
Compact Disc - Recordable. A technology for CD-R (recordable) media. Also refer to
CD-WO, Compact Disc - Write Once, limited to just one writing.
CD-ROM
Compact Disc - Read Only Memory. This is described in the Yellow Book. Differing types
of data that can be read by a computer such as programs, text, image data or sound may
be stored with this CD format.
CD-ROM - Mode 1 and Mode 2
A supplement to the CD-ROM format which provides an additional error recognition and
correction function. Mode 1 is especially used for computer data and employs a code for
error correction. Mode 2 is used with CD-ROM/ XA and CD-I with audio data and
contains an error recognition code only.
CD-ROM/ XA
CD-ROM/ Extended Architecture. This CD format makes it possible to store computer
data and audio or video data on one track. The different types of data are linked to each
other (Interleaving) so that synchronization problems can be reduced.
CD-RW
Compact Disc - ReWritable. A technology for CD-RW (rewritable) media. It is not limited
to just one writing, but may be erased and re-written as often as desired.
CD-WO
CD - Write Once. As the name implies, it is a CD that may only be written on once. Also
refer to CD-R.
Disc At Once
Disc At Once is a method for recording of data onto a CD. With this method, the entire
CD is written in a single process. The CD-recorder first writes a Lead-In, then the data
block, and finally a Lead-Out. In contrast to Track At Once, linking blocks are not used
between the individual tracks with Disc At Once.
