Glossary - Nero Express 9 Manual

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Glossary

Archive Bit
Archive bits are used to identify files that have been edited. A file is only resaved during the
next backup process if it was edited (and an archive bit is thus reset).
Audio CD
An Audio
quality. The storage capacity is 747 MB at a sample depth of 16 bit and a scan rate of 44.1
kHz.
Block
A block refers to the smallest information unit on
able in on
sector.
Blu-ray
Blu-ray technology refers to burning on special data carriers. In comparison to DVD's, which
use a red laser in order to read and write data, Blu-ray discs are written wi
The shorte
with greater accuracy. Data can be written in a more compact manner and takes up less
space on the disc. A Blu-ray disc can store up to 25 GB on a single layer disc and up to 50
GB on a dual layer disc.
Book T ype
The book type defines the specification (e.g. DVD-, DVD+, DVD-ROM) of a DVD. In orde
ensure correct playback, the DVD specifications are defined in books so that all media
be read correctly. The specifications are defined in the so-called Rai
distinguished by means of t
Buffer
A buffer refers to t
immediately as re
Buffer Underrun
A buffer underrun
corder). A buffer unde
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,
mechani sm against buffer underruns.
Cache
Cache is a faster buffer that is used in various areas of a computer to access larger data vo-
lumes faster. Cache ensures a continuous flow of data.
CD can contain up to 74 minutes of audio sequences and individual tracks in hi-fi
e access and that is indicated in bits or bytes. Several blocks are combined into a
r wavelength (405 nm) of this blue laser makes it possible to position the laser
heir color (e.g. Yellow Book).
emporary memory that records and delivers data that cannot be processed
quired. The buffer also allows for continuous data flow.
is an interruption in the data flow in the internal memory (e.g. of the re-
rrun results from an interruption in the data flow to the internal buffer.
the media becomes unusable. Most modern recorders have a protective
Nero Express
a CD-ROM or hard drive that is address-
th a blue laser.
nbow Books, which are
Glossary
r to
can
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