I'm aware of that and have been criticizing the movie industry's requirement to ship content with DRM for a long time, particularly as an avid and frequent buyer of DRM-free, lossless music.

However you're right - the iTunes purchasing example shouldn't have been part of my previous response. On the other hand I think DRM is fine, if not a necessity, for a subscription service like Netflix. It is basically renting content and my expectations towards these services are very different from a store that offers purchasing, which should absolutely be a DRM-free experience. The fact that it's not is exactly the reason why I don't buy films on those platforms, unlike music, which is available countless large and niche stores.