How do I Edit out stuff in my DivX movies

[flashmeister]

I have a lovely new Freecom mediaplayer harddrive thingy which came with Dr DivX. I took me ages to work out how to backup my DVD collection to the drive using the supplied hardware. DVD Dycrypter needed (or equivalent). It Didn't say that in the sales blurb.
Anyway I think I'm starting to get the hang of the decoding process now.
I have some Dob files prior to encoding or the final AVI (DivX) movie that I want to edit out stuff from the beginning or the end of the movie.
How can I do this (freeware prefered)?

[abc-123]

Virtualdub. Free, fast and easy. Search for a guide in the All Guides section on the left of this page.

[flashmeister]

Thanks I'll try that.