Apple Insider writes the new Apple MacBook lineup uses HDCP to prevent playback of protected media on devices that aren't compatible with the new priority protection measures:
ArsTechnica reports that Apple has apparently acquired a license for the technology and is now using it across its DisplayPort-enabled MacBook lines to to prevent transmission of purchased iTunes content to devices that don't include support for HDCP.
"When my friend John, a high school teacher, attempted to play Hellboy 2 on his classroom's projector with a new aluminum MacBook over lunch, he was denied by the error you see [below]," writes Ars' David Chartier. "John's using a Mini DisplayPort-to-VGA adapter, plugged into a Sanyo projector that is part of his room's Promethean system."
The report adds that only a portion of Tunes Store video content is presently HDCP-aware, and in each case the protected files are wrapped in either version 2 or 3 of Apple's FairPlay digital rights management software.