DRM is a requirement of the insurance providers who insure distributors and pay out if the distributor leads to the content being leaked. In reality the DRM technology isn't that important its more akin to the questionnaire you get for car insurance that says do you have a thatcham alarm. Too much analysis looks at this from technical angle when it's really an insurers tool to lower their risk (only to lower it!). It…
Do you have any evidence of such insurance policies existing? I've never heard of them before. It seems strange considering that most pieces of content are leaked fairly quickly.