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Glossary
Nero Linux 67
15 Glossary
AIFF
The Audio Interchange File Format is an uncompressed audio file format from Apple® and
represents a sort of counterpart to the WAV format from Microsoft. Files are larger than
when using a compressed format, but the quality is higher. AIFF compressed is the com-
pressed variation.
Book Type
The book type defines the specification (e.g. DVD-, DVD+, DVD-ROM) of a DVD. In order to
ensure correct playback, the DVD specifications are defined in books so that all media can
be read correctly. The specifications are defined in the so-called Rainbow Books, which are
distinguished by means of their color (e.g. Yellow Book).
Bootable CD
Booting refers to loading the operating system when a computer is started. This is normally
done from the hard drive. However, if you do not want to boot or cannot boot your computer
from your hard drive for whatever reason, you can load an operating environment from the
drive with a boot CD.
Buffer Underrun
A buffer underrun is an interruption in the data flow in the internal memory (e.g. of the re-
corder). A buffer underrun results from an interruption in the data flow to the internal buffer.
The buffer continues to deliver data until it is finally empty. When recording, data is fed con-
tinuously to the recorder's buffer in order to keep a steady flow of data. If the steady flow of
data is interrupted, the media becomes unusable. Most modern recorders have a protective
mechanism against buffer underruns.
CD-R
Compact Disc-Recordable is a technology for write-once media. The Orange Book standard
defines the storage of audio data and other computer-readable data.
Disc-At-Once
Disc-At-Once refers to a method in which the laser in your recorder burns straight through in
one session without turning off and on between each track. This method is best when re-
cording Audio CDs you would like to play in your home or car stereo.
Frame
With an Audio CD, 75 sectors provide one second of played music. One sector consists of
up to 98 frames; one frame contains 24 data bytes and 9 control bytes. Similarly, "frame" de-
scribes a full screen in television and video technology. Two successive half images result in
a full screen within a second due to interlacing.
Image
An image refers to a single file on the hard drive that contains the image of a complete disc.
A disc image can be used to create exact copies on media at a later point in time if problems