WonderFox Free HD Video Converter Factory is a vversatile conversion program for audio and video. It can work as an excellent MPG to MP3 converter to help you fast convert MPG file to MP3 with no issue. In addition to changing MPG format to MP3, it also enables you to convert MPG to MP4, AVI, MKV, AAC, WAV, and other audio & video formats in a few clicks. This software is totally free and easy to use. Now, get this software and see how to convert MPG to MP3 in the next part.