I was wondering how many different versions there are of these movies on LD. I've noticed there is a Japanese box set, but it has subtitles that can't be removed.. I also noticed some of the domestic LD releases are widescreen, some are not. Has there been more then 1 release where audio/video quality was increased? ( Like how the Star Wars Trilogy has the THX/ earlier non-THX versions ) Is the Japanese box set different in video/audio quality then the domestic widescreen?