Variable Scale

VBR CBR Bitrate +- 10% Supported Channels Recommended Use
Low *96kbits/s Mono
Joint Stereo Stereo
Near CD-Quality
Good choice for portable MP3 Players (smallest file size).
Use when storage space is a consideration; when playback is performed with low-end sound equipment and listening environment such as portable players or car players.
Normal/Low 112kbits/s Mono
Joint Stereo Stereo
CD-Quality
Best choice for portable MP3 Players where file size is limited.
Normal 128kbits/s Mono
Joint Stereo Stereo
CD-Quality
Best choice for most users.
Normal use; similar to encoding moderately difficult to difficult content with a CBR of 128kbits/s.
Normal/High 160kbits/s Mono
Joint Stereo Stereo
Archival Quality
For high-end stereos (larger file size).
Compromise between Normal and High settings.
High 192kbits/s Mono
Joint Stereo Stereo
Archival Quality
For highest-end stereos unlimited file size.
Use when storage space is not a consideration; when playback is performed with high-end sound equipment and listening environment; and when heavy equalization adjustments might be used on playback.

*High Frequency not supported at this rate