MP3Gain - A free automatic mp3 volume normalizer.
winLAME - winLAME is an encoder for several audio formats, including mp3 (MPEG Layer 3), Ogg Vorbis and more.
QMP3Gain - Graphical user interface front end supporting MP3Gain engine which analyzes and losslessly adjusts...
Express Rip - Express Rip CD ripper can convert CD audio to mp3 or wav file formats.
wxMP3gain - Needs to be compiled.
Audiograbber - Audiograbber software is a famous freeware platform for audio extraction or conversion for Microsoft Windows. The software was first developed by Jackie Franck in the mid-1990s. Read more about Audiograbber.