In reply to goosebump:
When you first got your computer and started WMP, did you coose an option that allowed DRM to protect the copying of CD's?
Just a thought.
Media Monkey is very good
http://www.mediamonkey.com/
Many years ago I did the same thing with my CD collection and to be truthful I found the process to be time consuming. Yes its a doddle to RIP a CD. But then you have the laborius task of cleaning up all the tags and getting artwork.
I found the simplest method was to actually hunt down the albums that you own and download the MP3 files from a Torrent site. That way you get your albums and the tags in some sort of order to build up your library.
Many would say that this was illegal, which it is, but so is ripping a CD that you own under UK law.