eXtreme Movie Manager is probably the most advanced Movies/TV Series/Actors collection manager around. It can catalog movies stored in your Hard Disk and removable devices in seconds with all information about codecs, resolutions etc. automatically. XMM import movie information and covers directly from online databases, take a look at supported websites.
What's new in this version:
Version 126.96.36.199 adds the _MOVIE_FANART_ Tag to NFO export and an option to clear all tags before export the NFO.