As a big fan of the out of order structure of Tarantino's scripts I always wanted to recreate his original vision of this film. But some deleted scenes play a big part in his version and they were only available in pretty low quality. The special edition Arrow released recently brought the scenes still in SD but upscaled to 1080p, so the blend with the official HD footage wouldn't look too jarring. And of course, Tarantino's original ending was reinstated, which I always preferred anyway.