I did a quick capture of the beginning 5 mins, the stardestroyer going over and stormtroopers wiping the floor with rebel scum, it appears to have been created from the same source the French & German THX laserdiscs were made from as it has the same burn marks when you first see the droids, and the audio has the same characteristics as the French subtitled LDs, timestretched so the pitch is correct and the dynamic range has been altered so the explosions don't have a disctintive oomph and are just more loud noise amongst the other loud noise. I don't know who allowed the audio to have THX certification but they need a slap.
Are these the tapes Moth3r is using for the audio of his LD transfer?
The only good thing about these tapes is that they have the full English audio for the George Lucas interviews, my German LDs have the same interviews but dubbed.