i don't know but there's a lot of news on his site...

http://www.weirdal.com/latenews.htm

especially about the fact that all his songs are available on iTunes:

AL ON ITUNES!
Do you hate owning CDs? Are they just too round and three-dimensional for you? Well, good news! Al's complete catalog is now available for the first time ever as digital downloads exclusively at iTunes! That's right, every last stinking one of Al's albums can now be downloaded (LEGALLY, you hooligans!!) right to your computer. How about that.