Sorry forgot to respond to the Belafonte release. It is a very recent if not new release. Good sound on this one...I have a hard time judging the sound quality of some of these remastered older recordings.
I was going to buy that then found out it is mono. Mono SACDs don't seem to offer much of an improvement over a CD, but I'll probably buy it eventually. And that Nat King Cole one too (it's stereo).