I use Windows Media Player 10 to rip CD's. All you need to do is click on the button for Retrieve CD information (cannot remember specific wording) and as long as your are connected to the internet, it fills in the album, artist and track details. It is the same with earlier version of WMP.
Jaysus, the thoughts of having to type in the track listing for hundreds of CD's would not appeal...
Just thought, if you bring up the unnamed tracks in a playlist in WMP, and look for the album information, I am nearly sure it will go off and find it without the CD. Or at the very worst, just put the CD back in at the same time.