Furthering my quest to correct invalid scrapes, an addition to the find duplicate movies function would be a function to compare the movie name to the folder name and return those which do not match. The matching would need to allow for the use of . (full stops) between words and the use of movie year (for those that use it). This would be extremely useful, once your collection is inb the 1000's its not fun to manually walk through them checking for errors.
Potentially some errors returned will be due to the folder name not being correct. the next function that would be very useful would be a rename function which would rename the folder and all the movie elements within the folder to match the movie name - this would be really useful in cleaning up some of the extra "dvdip-I-Am_the-greatest-RuLZ!" stuff that seems to come with these things. I would only use this function on a single movie by movie basis however I can imagine some trusting souls might like a global "clean up all my file names and folder names" option..