That's a very generous offer and I love free things like most people do. But my experiences with CD?s as signal mirrors haven?t been very good. I was testing out the Ultimate Survival mirror this summer and brought along a full sized CD for a test. This is far from scientific but at 2 miles the CD wasn't able to make a flash for the other observer to see. The U.S. mirror was easy to see.

You should do your own test and let know how you made out. <img src="/images/graemlins/smile.gif" alt="" />

Adam