I believe Webslinger, in one of his responses regards AnyDVD, indicated by checking these items the trailers and adverts can be removed from the back up
Not removed . . .
Skipped or bypassed or redirected (around)
They are skipped over (when the feature works properly).
If you want to actually remove them, you have to remove the titlesets in whatever burning/reauthoring program you're using.
Because my preference is to use Clonecd with Verbatim +R DL media and Anydvd, "remove annoying adverts and trailers" is a very important feature for me. There are no reauthoring functions in Clonecd, so one must rely on Anydvd for that feature to work (there are, of course, methods to blank, change pointers, or edit stuff, but, as I'm lazy, I can't really be bothered). Subsequently, I have a very strong interest in having that feature improved in Anydvd, but as usual, I suspect I am in the minority.