I just received a portable hi-rez audio player (details in Digital thread) and picked up several "new" releases from HDTracks. Since the player outputs 192/24, then that is the resolution I purchased. My favorite so far is Muddy Waters "Folk Singer" with Willie Dixion and Buddy Guy. It is all acoustic and I have read in several places now that the actual studio recording was so well done that it made the remastering release one of the "best audiophile recordings of the 20th Century." A bold claim indeed, but it has phenomenal clarity and is one of the best recordings I have heard in awhile. The album was released in 1964.
Also, picked up Van Morrison "Astral Weeks" and "Van Morrison and His Band and Street Choir." I got the latter since I saw him and this band at the Lions Share in San Anselmo in 1972. Both are well done in terms of remastering. I am not sure if it is considered a good thing or not, but if you listen closely you can hear the tape "hiss" in between songs. I don't own either in vinyl or CD format so figured that now would be a good time to buy. Good early Van Morrison.
The last 192/24 recording I got was a Stan Getz and Bill Evans recording of Bossa Nova pieces. Haven't listened to it in great detail, but I like what I have heard.
I would highly recommend the Muddy Waters "Folk Singer" to anyone. Some great audio, music, lyrics, etc.