>If content can only be played on this OS, isn't that restraint of free >trade? Is the DVD license agreement a restraint on free trade? Without signing it, a given manufacturer's DVD player shouldn't be able to play CSS-protected discs (oooops). One of the objectives of the Digital Rectal Thermometer Act (Ron Rivest's name for the SSSCA) was to remove other cartel-type worries for compliant manufacturers.