reddit

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High Definition Content Protection (HDCP)—you can't live with it, but you practically can't buy an HD-capable device anymore without it. While HDCP is typically used in devices like Blu-ray players, HDTVs, HDMI-enabled notebooks, and even the Apple TV in order to keep DRMed content encrypted between points A and B, it appears that Apple's new aluminum MacBook (and presumably the MacBook Pro) are using it to protect iTunes Store media as well.
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