Man, their standards for the Czech audio sure were...different, to put it mildly. Old VHS or not, they shouldn't sound like that. I'm trying not to sound negative, but I can't help but feel that it seems unfair to the Czech fans! They don't deserve to get guy-talking-into-a-bucket Vader. :p
But, of course, I find it very interesting, and even though I don't speak it, I'm glad you put it on! :) I've listened to a lot of the German, too. It's fun hearing how different people put feeling into the roles. Han in German is especially interesting. Not as hammy. ;)