well, just as long as you don't sell them...
i don't know where you might be able to find dvd title menus, though you could a) create your own, or b) that screenshots (or whatever) of the actual titles.
as for making them work, i don't know, but GFF might, and you can enquire here
If you need the clips, purchase the DVDs. And don't do it illegally. We'll all help you here (i think) if you don't break any rules.
Oh, and welcome to PEEL. Check out the PEELer's FAQ
, and nobody will complain.
and yeah, what Andy said....