Just took the time to take a look at the real bonus discs with a friend, who bought the set.

Didn't detect any Easter Eggs when going through the file structure of Disc 9 - the Documentaries.

The OT deleted scenes are muted from time to time without any technical reason. Sound is suddenly off completely in the middle of a shot and on after a few seconds again in the same shot. Technically the sound is either on the master tapes they used or not.

The only explanation I have is Lucasfilm is doing this on purpose to avoid fan films based on those scenes.

It's a shame that fans who are paying to watch those scenes are paying 100% but don't get 100% of their content.