In the end, nobody will ever avoid people from having a camera pointed to a screen. At least till they can implant a description device in our brain, the stuff coming out of the screen can be recorded. Like in the past when people used to record movies at the cinema with cameras and upload them on emule. Sure, it would not be super high quality, but considering that is free compared to something you pay, who cares?
To me DRM is just a lost battle: while you can make it inconvenient to copy a media, people will always try to find a way. We used to pirate in the VHS era and that was not convenient, since you would have needed 2 VCR (quite expensive back then!) and it took the time of the whole movie to be copied.