Looking for Audio Software

Hello,

I'm looking for some good audio compression/bitrate conversion/codec software,
and was wondering if anyone knew of any good programs that can do this?

I have a bunch of music and would like to experiment with different formats and bitrates etc.

Thanks in advance,
Femto

I've always used audacity for audio related stuff. It's free and works well.
http://audacity.sourceforge.net/

This is perfect!

Thanks Karbon, much appreciated, have a beer