what happen when you have 2 - 3 the same movies in differente folder or disk something with little typo name but same movie? does zidoo take the last scan or keep the first scan or take the best quality? when you have 6to movie to disk not alway easy to find duplicate ?
If it is recognized as same movie whenever new source is added with duplicate it will be listed collection. If it is in the same folder than it will be listed under same poster name. You can than differentiate them through there media info and their storage path.