http://bugs.winehq.org/show_bug.cgi?id=30817
--- Comment #9 from OzzyFrank ubuntu@ozzyfrank.com 2012-11-05 18:07:53 CST --- SUCCESS! I finally got DVD Shrink not only to load, but successfully shrink some discs. Thanks Mr. Jesus once again - I actually wasn't expecting a reply so quickly, so had trawled through those pages and figured out for myself that Gstreamer seemed to be the culprit (at least for a bunch of games out there).
I figured simply disabling Gstreamer should be enough, as recompiling Wine without it was a hassle I'd rather avoid (and should have the same effect anyway), but as mentioned it didn't seem to work. While "Native (Windows)" would get the program to load, even if it couldn't be used, disabling Gstreamer resulted in the app not loading at all. However, this was a global setting, which I wanted to avoid in case any Windows programs that worked fine needed it, so I changed that back to "Native then Builtin", and for DVDShrink.exe only I disabled it.
After that, it worked. So now I'm a happy guy again and don't need to boot into Windows (or run it virtually inside Ubuntu) just to back up my DVDs. Thanks once again.