Given that you'll never be able to prevent copying, the question is, what can you do to minimize it? What can you do to make consumers happy enough with legitimate use of the system that they'll be willing to pay for it?
“I wrote that song for my wife, and it's what some guy who's sitting under a tree would be singing to the woman of his life, telling her how wonderful she is. To me, that's more lasting than something that sounds like it belongs on a movie soundtrack.”
“If every inhabitant of a liberal democracy believes in liberal democracy, then it doesn't matter what creed or colour they are.”