26 November 2008 @ 11:33Quicktime update removes HDCP for SD vids
Apple released QuickTime update 7.5.7 to allow DRM’ed videos to play on external displays without HDCP support, but only in standard definition.
The description of the QuickTime 7.5.7 update from Software Update:
This update is recommended for owners of MacBook, MacBook Air, and MacBook Pro with Mini DisplayPort. The update addresses an issue where some standard definition purchases from the iTunes Store do not play on some external displays.