Lucasfilm has announced that Star Wars: The Complete Saga will be available on Blu-ray this September. The 9-disc set will feature all six live-action Star Wars feature films utilizing the highest possible picture and audio presentation, along with three additional discs and more than 30 hours of extensive special features including never-before-seen deleted and alternate scenes, an exploration of the exclusive Star Wars archives, and much more. Alternatively, you can buy either the Original Trilogy or the Prequel Trilogy in separate Blu-ray sets.
You can use the links below to pre-order from Amazon.
Star Wars: The Original Trilogy