Hi !
Easytag is considered as the best masstagger for Linux/unix. (see http://easytag.sourceforge.net/ (http://easytag.sourceforge.net/) for an extensive list of features)
I ported it to native Windows these past days. Llike win32 versions of gaim or gimp, it use the GTK2 port to Windows.
Screenshots and download at: http://bubbleguuum.free.fr/easytag/ (http://bubbleguuum.free.fr/easytag/)
Read the README in the zip for install instructions (it's very simple you'll just have to install GTK2 runtime), and a list of known issues.
This version is already very functionnal but need some more testing, so please test and report problems / bugs here !
And some feedback if you like / dislike the program
New version in the same location (just redownload the zip)
Many bugs corrected and now with CDDB fully working (see screenshot 3) !
There's a know bug : first time you expand a drive in the tree it'll always expand C: