Sometimes doing something a little outrageous can avoid the costly court case. I am not sure if anyone remembers but back a few years ago the retired magician, "The Amazing Randy" disputed a cable companies claim of superior performance by offering $1 million dollars to the company if, in a blind listening test, hand-picked mutually agreed upon experts could tell the difference between this so-called high-end cable(it retailed for $7500!)and a run of the mill audio cable purchased in any store. Given the whole episode stretched out over a period of weeks, it got all kinds of publicity in the CE press. Needless to say after agreeing to the test, the company at the last minute, backed out never to be heard from again.

A pretty effective way to get rid of the false claims.