yacib Portable Mp3 is a free software mp3 converter and mp3 compressor. User can compress mp3 and convert different audio types:
mp1 to mp3,
mp2 to mp3,
mp3 to mp3,
wma to mp3,
ogg to mp3,
aac to mp3,
m4a to mp3,
m4v to mp3,
mp4 to mp3,
3gp to mp3,
3g2 to mp3,
flv to mp3,
swf to mp3,
flac to mp3,
wv to mp3,
aiff to mp3,
aif to mp3,
aifc to mp3,
afc to mp3,
wav to mp3