The problem affects policy makers, because the traditional 
                first-sale rule of copyright, an important element of public policy, 
                is undermined by information in digital form. That rule works 
                in the world of physical artefacts because they are not easily 
                reproduced by individuals and are not accessible to multiple, 
                distant viewers. But neither of these limitations holds for digital 
                works. Consumers are affected as well, because access is accomplished 
                by copying, and in the digital world copyright's traditional control 
                of copying would mean control of access as well.