This soundtrack mojo will only be applied to the cinema release of a film, so if a player recognizes the pattern, it will know it's not playing a legit copy, and shut down on the double.

ENGADGET: New audio "watermark" copy protection scheme for cinemas in the works

While he has no plans to change the pattern of his giving, he is changing its visibility, becoming one of ten new tycoons who, with the release of this issue, have publicly signed on to the Giving Pledge.

FORBES: Meet the Eight Forbes 400 Billionaires Who Just Signed the Giving Pledge