Keep in mind there are a lot of crappy public domain versions around. (Some going all the way back to the early days of VHS.) Many of these play fast and loose with the intertitles and are missing a lot of footage.
I even saw a version the SciFi channel cobbled together and ran a few times in the 90's. The score sounded like a Casiotone keyboard or something. (They even had the balls to copyright it!) It was an awful thing to look at, especially after seeing Moroder's version.