
In what seems like another addition to a long list of examples of how when you rent digital content, you’re actually renting it with a strict set of conditions, Apple owners are running into trouble with High Definition Content Protection (HDCP). The problem, affecting owners of the new aluminum MacBooks and MacBook Pro, occurs when you try to play some iTunes-rented movies on an external display attached to your notebook.
The HDCP causing the problem is intended to prevent copying high-def content across an HDMI connection. It’s also included in DisplayPort tech, which is the new standard for video output on current generation Mac portable computers. According to Ars Technica, the problem seems to affect movies protected by Apple’s FairPlay Version 3 DRM, although not all files which have Version 3 protection are affected. Whether or not the movie plays appears to be somewhat random, at least in Ars’ limited sample pool.
The person who pointed out the problem to Ars was just trying to play Hellboy 2 for a class of high school students using an external projector. Another case reported in an Apple support discussion thread occurred when a MacBook owner tried to playback content to his external 19-inch monitor. This report was quickly joined by many, many others. In all cases, playback works fine on the computer’s built-in display.
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