Question for Expression Media Experts

[Neville]

I am finally a convert have changed from PC to a Mac in most of my life.  But my pictures are still on the PC since I have 2 2 TB external Hard Drives and have used other programs (elements) for most of the tracking of the 10K plus pictures on it.  I want to use EM on the PC and the Apple but do not want to house the pictures on the Mac.  Can the catalog sets be the same for both computers?  When I just loaded the Mac version it wanted to save the catalog as another name.

Thanks for the help.

Neville