How do I change a video format (MPG4) to a music (mp3) format?

I have got a video on my computer, and the format is MPG4, but i want it as a music format - mp3. Is there any way in which i can change the format?|||ur question is wrong......one cannot change a video format into audio format.u want to separate the audio track .





simple way is to use vcd cutter to separate the audio|||Convert-WMA-to-MP3 is an ultimate user friendly program to convert media files and extract audio from video to MP3 format.





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List of supported input formats:


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