Editing the audio track of a DVD

My band were filmed (Camcorder) at a Charity gig last Saturday. The video footage is really good but the audio track is a little "toppy" and I'd like to take the audio and tweak the EQ a little then re author the DVD. (I don't have the original camcorder footage just a DVD copy)


The problem is that, while I know how to rip the audio track to uncompressed wave format and I'm fairly sure that I'll manage to tweak the EQ's ok in Soundforge, I'm not sure how I'd go about putting the edited audio back together with the video.
Does anyone have any experience of doing this sort of thing??

Any advice or the name of a suitable piece of software would be gratefully received!