Actually, this is about how music works nowadays. You can download DRM-free files for a small fee. It would be technically easy to redistribute them, but people

Actually, this is about how music works nowadays. You can download DRM-free files for a small fee. It would be technically easy to redistribute them, but people still buy lots of music. Why is that? I think it's because people are making a price-convenience tradeoff. Music companies can affect both sides of that: keeping the price low will make people want to buy, but they can also sue distribution sites to make it less convenient to get music illegally, thus raising the price that people are willing to pay before they seek out illegal music. To a certain extent, DRM aims for the same model - it doesn't make it impossible to redistribute videos, it just raises the difficulty, and thus raises the price that people are willing to pay before they go find illegal videos. But is it necessary to use DRM for that, or would going after distribution sites be enough?