Assuming that dvdfab correctly decrypted the movie, when you open it up in shrink, you will have to un-check any foreign languages and subtitles; then go title by title (left hand pane) and in the right hand pane, for compression, in the drop down menu, select 'substitute still image' for all the titles that you don't want to keep. For example, if there is a folder on the left side that says "unreferenced material", highlight it, then select still image for the compression.
You will have to expand the various folders and look for the various 'coming attractions or previews', examine the contents in the preview frame (make sure you have the preview enabled) and substitute still image fot the ones you don't want to keep.

Alternatively you can re-auther the main movie only (button at the top of Shrink). no menus, just the main movie.

Best Regards