DVD2AVI sound problem

Im using DVD2AVI to create a project file so I can use DVDtoOGM to rip some of my DVD's to ogm format for storage on my comp.
Basically, I set DVD2AVI to demux all tracks, and I get a single .ac3 sound file.
The only problem is that the audio on this is very low....i have to jack up my speakers really high to make it workable, which means I cant get some nice loud audio for action movies, which is pretty crappy. the sound works at a normal level when I just play the dvd on my comp.

So, does anyone know any certain settings that I should enable in DVD2AVI to make the audio come out louder?
Or any third party programs I can use to make the audio from any program louder? (would be appreciated, especially since I have some other videos/songs that are too quiet)