Originally Posted by Lady Fitzgerald
Thanks for the explaination. Before I fool with it, will this work when I upgrade to Win 7 (it is inevitable)?
I think it will work but since I don't run Windows 7 I can't be more then 99% sure.
Once the individual libraries are functional all you have to do is start calibre normally (via default shortcut) and switch between them by changing the location in calibre under preferences.
Personally I still think keeping everything in one library and using tags/series and custom columns is the way to go.