Paul Boutin calls out a quaint system which I should link to my soft edges piece: "You can take all the papers you want for a quarter. You can leave it propped open for everyone else. But you don't, and almost no one else does either. It relies on pricing and the honor system, rather than foolproof technology, and it works. Well enough, anyway... Instead of trying to build an uncrackable safe, DRM makers should ask themselves: How can we be more like the newspaper box?". There aren't any newspaper boxes around here (even the local phonebox gets kicked in every week) but that's probably due to lack of demand.