User manual

Glossary
Nero Express
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MP3
The MPEG-1 Audio Layer 3 audio format is used to reduce the size of audio files to a frac-
tion of their original size (factor 1:10) with little loss of quality. You can estimate about 1 MB
per minute as opposed to 10 MB for the original files. This value and the quality can vary
depending on the complexity of the audio signal. The bit rate used can be used as a meas-
ure of quality. The higher the bit rate, the better the quality, but also the more memory re-
quired.
mp3PRO
mp3PRO is an MP3 codec that compresses audio files even more but in lower bit rates and
better quality. 64 kBit/s in mp3PRO is the equivalent to 128 kBit/s in MP3.
Multisession
A multisession refers to completing a disc in multiple cycles. After a first session has been
written to the disc, information can then be added in another record because the disc has not
been finalized.
Nero AAC
Various MPEG-4 video and audio codecs are collated in Nero AAC and are fully compatible
with the standard MPEG-4. Nero AG is continuing to develop these. In this way a substan-
tially higher quality of the multi-media data is achieved. Further, additional features such as
subtitles have been implemented.
Ogg
The container format Ogg contains digitalized or compressed multimedia files that have been
encoded with the Vorbis method. Ogg Vorbis is an open source encoder.
On-the-fly
On-the-fly refers to a method for copying to a disc. The data is transferred directly from the
original storage location to the disc to be burned. To do this, Nero uses a compilation, a
small file that simply refers to the transferred data.
Track-At-Once
Track-At-Once refers to a write method in which each track is written to the disc individually.
The writing process is interrupted briefly after each track, i.e. the laser starts again for each
track. With this write method, it is only possible to continue writing to a DVD sometimes and
at a later stage. There is a pause of at least 27ms between tracks, which can be disruptive
for Audio CDs.
WAV
The WAV audio format, also called WAVE or Waveform audio format, is an audio format
from Microsoft and uses no data compression. WAV is the counterpart to the AIF format from
Apple.