I'm going to disagree on Diana Krall. I have two copies of that disc. (Don't ask.) I don't think it's even close to being in the same league sonically as the Chris Botti disc.I'm a huge Diana Krall fan. However, I think the Diana Krall disc is tier 1 or tier 2 audio as compared to the reference level that the Chris Botti disc is.The Botti disc even looks better. I enjoy both discs, but the Diana Krall disc isn't, IMHO, a reference disc.