FairTunes: Remove Copy-Protection from iTunes Music Store Files

I downloaded this program but I've yet to use it. In any case, here's the link. It's always annoying when I'm trying to share my music with people on my network - namely the four Macs in my family - since I can't enable all those computers to use the software. And even if I could, it's be such a pain in the butt. If Apple can keep you from copying the songs that are being played, how come you can't play shared songs that are protected? Seems stupid. That's the main reason I'd use this program.