Mortimer, I looked for the pictures inside the outer cover when I got this set in the post the other day. It looks neat but I wouldn't rip my case just to see it better. I know it's been quite a while since you made this post but do you remember if you did take it apart and if so did you take pics?
So far the only film I've watched from this set is FOD and I thought the picture and sound quality were fantastic. Definitely a step above the DVDs. You do have the option to switch to the original mono English dub if you want. There's also a couple new features that weren't on the Sergio Leone Anthology DVD box set. Would've been niced if they included a DYS blu ray :P.