Nero Burning ROM can encode audio files of an Audio CD in the OGG Vorbis format.
Set options in the OGG Vorbis Settings window that you can open in the Encode Files window via the Settings button. Ensure that you have selected OGG Vorbis as the Output file format.  
The following setting options are available in the OGG Vorbis Settings window:
Check box
Constant Bit Rate

Specifies a constant bit rate, i.e. the data flow per unit of time and thus the quantity of the saved data is 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 is near CD quality.

Check box
Variable Bit Rate

Specifies a 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.
You can set the variable bit rate between 0 and 100. 0 means the lowest, 100 the highest quality.

 
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.

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 compressed variation.

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.

OGG Vorbis Encoding Options