51 Times more difficult by Henry Evans DVD plus Gimmick

A card is selected and put back in the middle of the deck. The magicians says he will make the card magically turn face up, but then he says he has a better idea, to make it 51 times more difficult so he tosses the deck on the table and instantly all cards are magically face up except from one, the selected card, which is the only one face down in the middle of the spread.
It is 100% automatic, no sleight of hand needed.