Nero 9 Manual page 49

The following encoding options are available in the Settings area:
Drop-down menu
Encoder quality
Check box
Constant Bit Rate
Check box
Variable Bit Rate
Specifies the encoder quality. Fast, Medium and Highest are
available. These settings specify whether you place more value
on fast encoding (Fast) or more value on a superior psycho-
acoustic encoder model for the very best results (Highest).
Selects a constant bit rate, i.e. the data flow per unit of time and
the quality of the saved data are the same over the entire audio
file. If the bit rate is small, less data is transferred. The file is then
small, but quality is lower. If the bit rate is high, more data is
transferred. The file size is then large, but the quality is high. The
default value of 128 for MP3 files is near CD quality.
In the drop-down menu, select the Options that affect the bit
rate: scan rate per second in kBit, scan frequency per second in
Hertz and the channels.
Selects variable bit rate, i.e. the data flow per unit of time - and
thus the quantity of the saved data - adapts to the dynamics of
the audio file. The bit rate, for example, can be lowered at quieter
points in the track.
Select your desired quality level in the drop-down menu.
Nero Burning ROM
Audio CD And Audio Files
MP3PRO window
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