"There is nothing unusual about technology being used to protect intellectual property. You can't simply make an extra copy of a Microsoft operating system, or virtually any other commercially-released software program for that matter. Same with videogames. Movies, too, are protected. Why should CDs be any different?"
Of course, a copy-protected movie doesn't come along with the risk of your machine being compromised and taken over. Sony's recent recall of all affected CDs shows how serious the IT community reacted to it, and perhaps will encourage other producers to look in less intrusive directions.