extract metadata from nfo files

Is it possible for the metadata to be extracted from nfo files? This could save a lot of resources while updating the library, and provide near perfect accuracy. I keep all my movies in a single folder, and for every title.avi, i have a title.nfo (and title.tbn, title.jpg).
http://wiki.xbmc.org/index.php?title=Im ... _nfo_Files
http://wiki.xbmc.org/index.php?title=Im ... _nfo_Files