Changing dvd movie soundtrack only

What is the easiest way to change the music soundtrack on a dvd movie. I have DVD Shrink 3.2 and Virtual Dub but aren’t sure how to separate the dialogue track and the sound effects track from the music soundtrack and then put them all back on a blanc dvd. My hope is that I can basically replace the music in the movie with my own personal selection of music. Please let me know if this is even possible.

Erm, the audio is all in one track, the dialogue, sound effects and music are in one track only. So no way to really pull them apart as you describe.