NPR reported on this and in the program included recordings of two of the violins being played. You can listen at the following link.

http://www.npr.org/blogs/deceptivecadence/2012/01/02/144482863/double-blind-violin-test-can-you-pick-the-strad

I listened to the report in the car and through my ancient car speakers. I picked the wrong violin of the two as the Strad. When I reflected, I realized I assumed the sound I liked the most must be the Strad, it being the more socially cherished instrument.