Movie Studios Harnessing iTunes Extras For Advanced Features
Introduced in late 2009 with iTunes 9, iTunes Extras have been billed as a way for movie studios to release additional features and functionalities with their iTunes Store video content, offering a way to compete with and even exceed bonus fe...
http://www.macrumors.com/2011/01/03/movie-studios-harnessing-itunes-extras-for-advanced-features/
