There is a nice program called sox that can convert between many different audio types.
If you don't want to manually adjust the bitrate, you could simply enter:
sox file.ogg file.mp3
You may need to download a package for your distro from an alternate site to be able to use MP3s however.
That includes audacity.
Last edited by jschiwal; 06-17-2007 at 08:53 PM.