New MacBooks and MacBook Pros require HDCP for some iTunes videos

Some owners of the new MacBook and MacBook Pros have discovered something strange when you try to play some iTunes video content to an external display. If that display is not HDCP compliant, then iTunes will return an error saying that a connected display is not authorized to play protected movies.

While this may seem like a minor issue, consider if you plan on playing a purchased iTunes movie through a projector. Most projectors these days still feature a VGA input for connecting a computer. These users will now be unable to play content purchased from the iTunes Store.