Free Mp3 Converter is very easy to use, and will convert to mp3 music with bunch of options. This mp3 converter supports mp3 convert of all major audio formats,convert to mp3 with variable bit rate encoding, adjustable bit rates (30-320 KHz),CPU priority adjust , mp3 convert IO frequency adjust. Mp3 converter has various sampling rates, different encoding modes (Mono, Stereo, Joint Stereo) and many other options.