This is the forth shitty DVD release in 4 years! How many times can he re-release the same thing? My theory why these are not in blu-ray is because GL knows that with blu-ray he'll have plenty of more space on a disk to work with. He'll have plenty of room to store more than one version of a movie on one disk and he knows that he is obligated to give us what we want even more with that format since there is so much more space. So he's keeping it on DVD as long as he can so he doesn't have as much of an obligation to put more stuff on the disk like the OOT, deleted scenes, vintage documentaries, and behind the scenes footage. He doesn't want you to know too much about what went on behind the scenes and the history of star wars. It'll blow his cover that he didn't have as much control or skill as a filmmaker making the movies, and had a lot less knowledge of where to take the films than what he wants us to think.