While clever, the items in the article merely accelerate the DRM arms race; they do not deliver a war-winning weapon to any side. All the tricks here can be defeated with technology, even the interlace idea.<p>This whole line of thinking is an attempt to re-fight the music DRM battle, and the conclusions are the same now as they were then. First, if you deliver media to a user, then given sufficient technical means, the user can copy it. Either your users don't care to copy your content, in which case it didn't need to be DRMed, or they do wish to do so, in which case it can be copied, so DRM is a waste of money. Second, the cost of such technical means drops exponentially with the popularity of the DRM that is being used, because only one person needs to develop the circumvention technology and then everyone can share it. This last principle holds regardless of laws such as the DMCA, and regardless of lawsuits such as the thousands of lawsuits filed by the RCAA and MPAA.<p>In a way, this is all good. Entities that seek to control when and how other people copy data will waste their money and time they are weak enough that wiser competitors can remove them from the ecosystem. Sony is a good case in point. While they were wasting resources with DRM, Apple was eating their lunch in the music market. I now think of iTunes when I think of music, way before I think of Sony.