Specification English
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.
DVD+RW
Compact Disc – ReWritable. A technology for DVD+RW (rewritable) media. It is not limited to just
one writing, but may be erased and re-written as often as desired.
DVD+R
A technology for DVD+R (limited to just one writing.)
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.
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