“Home videos”

I have a massive collection of unrecognized videos. What I want is an application that would create nfo, fan art and posters for each one automatically. Currently I use a combination of the music video nfo creator and media companion to do so, but then I have to go through each folder to rename the thumb to fanart.jpg and I use IrfanView to trim the thumb to make folder.jpg. any idea of how I can automate this? Currently the way I’m doing this will take the remainder of my life to get all the videos to come up properly, so I am eager to get some assistance.