I agree that the 1993 set would be the way to go to get all of the original content, but if your dilemma is between which SE version to get, the 1997 set is the way to go. Like mentioned before, the liner notes are actually awesome, and in my opinion, the all around packaging is superior. The holographic CD's are quite cool. I have heard both the 2004 and the 1997 version, and I personally don't think there is much difference sound wise. Hope this helps!