These are selected scenes only. Maybe around 35 minutes. I will check if it's stereo or mono when I get back from work but I am pretty sure that it is mono.
I am digitizing old tv recordings of all three movies (recordings must be from around 1993). So they are all pre-SE, even without A New Hope in the crawl. This might provide german audio tracks for all three films. The tapes aren't the best quality (still better than I thought), mostly video distortions.
I am still fiddling with the capturing process. I am using VirtualDub but the sound has a lot of noise. Must be something wrong with the settings.