mp3DirectCut is a fast and extensive audio editor and recorder for compressed MP3.

You can directly cut, copy, paste or change the volume with no need to decompress your files for audio editing. This saves encoding time and preserves the original quality because nothing will be re-encoded. The built-in recorder creates mp3 on the fly from your audio input. Using Cue sheets, pause detection or Auto cue you can easily divide long files.

mp3DirectCut Features:

Non-destructive cut, copy, paste
Volume change, fade, normalize, pause detection
mp3 recording with ACM or Lame encoder
Fast mp3 visualisation and easy navigation
Supports Layer 2 (dvd/dvb audio)
ID3v1.1 tag editor · ID3v2 tag keeping
Cue Sheet support
Auto cue (track dividing by time values)
Track splitting with filename and tag creation
Trim · Crop · Fast play · Loop play
VU meter, bitrate visualisation
High speed recorder · Command line usage
Unicode support