IF you want to add title, year to your files and you select this option I have found it doesn't work. In fact I'd advice not using it. I did this with about 300 files. Process completes okay but when you go look at your files the process gets stuck on a year and uses that.
I had about 111 that were right the rest had 1969 for a year. Since the data in the database hasn't changed you can try it again only to find out it picks a different year to not work.