There's a cross-platform app out called... crap, I can't remember!
Librarian Pro. There I did it, that might be worth a look.
If you have both a Mac and a Windows machine, this is a nice option as you pay for one license for both of them and you get 5 or so installations. It's also one application that accepts and categorizes everything (DVDs, CDs, Books, etc.). I gave it a whirl in the fall and liked it enough. However, I uninstalled it because I have lifetime licences for collectorz apps (mp3, Music, Books, and Photos) AND I find that the reality is that I don't use them much. Anyway, thought I'd throw it out there for consideration. I remember little about it - the version I tried wasn't nearly as flexible as the collectorz equivalents.