"Among the connectors supported by the technology are the Mini DisplayPort found on Apple's latest MacBook, MacBook Pro, and MacBook Air, in addition to others such as Digital Visual Interface (DVI), High-Definition Multimedia Interface (HDMI), Gigabit Video Interface (GVIF), and Unified Display Interface (UDI).
"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.""
