That's what the Auralnauts discovered earlier this summer when they received word that Warner/Chappell-the global music publishing arm of Warner Music Group-had filed a monetization claim on their "Star Wars Minus Williams" video through YouTube's Content ID System. That's right: The copyright holder was claiming ownership of something that wasn't there. Under the claim, Warner would receive any future ad revenue earned by the video, which has been viewed more than four million times. The company's effort to monetize silence transformed the Auralnauts video: Once just a clever gag, it quickly became a flashpoint in the broader YouTube conflict between freedom of expression and copyright protection.