Danny Boy
Rock n' Roll Doggie FOB
The complete studio recordings are actually drawn from the same masters as the original 1990 box set (and the second one from 1993). There may have been some minor tweaking, but they are essentially the same.
So this is really a complete facelift to the catalog, almost as long of a wait as the Beatles, which was originally in 1987.
True, but that was the second digital mastering of the LZ catalog, by Jimmy Page and George Marino. I had some of the original CDs from the 80s, which I think were mastered by Barry Diament.
If anything, I might download one of the high-definition remasters to see if I can appreciate a difference.
ETA: Oh, I see Laz already covered most of this...