I thought I would post my latest 24/96 download off HD Tracks and compare this album to my CD album.
Both albums were downloaded in AIFF and played via MBAir>iTunes>Amarra 2.4.5>DF>HE 400 and later for further comparison MBAir>iTunes>Amarra 2.4.5>DF>Senns PX100. I later flipped off Amarra so I could hear iTunes directly via the DF.
I randomized my songs (playlist created by a very uninterested 3rd party) and kept the DF and computer turned to a point I could not see the frequency changes. I kept my impressions on paper and the results were more dramatic with the addition of Amarra and HE400.
The most significant differences between the CD and high Rez versions were on the drum work in particular the opening sequence on "Hot For Teacher." The clarity and imaging was dramatically better with the high Rez version.
"Panama" in the middle sequence was also clearly better. Roth's vocals are in the foreground and the synthesizer sounds are delivered with better separation and sequencing.
The guitar on "Drop Dead Legs" also was noticeably different from the CD version. The finger tapping was more out front and isolated.
The guitar appeared to be more separated to the left speaker through out the 24/96 album. I found it harder to separate the two albums when all the band was engaged. The high Rez seemed to separate better when instruments were isolated.
I have very few HD Tracks albums overlapping either my vinyl or CD's so I have only a few to compare. My take on this album is that the original mastered version on HD Tracks is superior in sound quality to the CD. Since the original masters were different than the CD I am not completely convinced that this was a fair comparison.
In the future I'll try to do a less "apples to oranges" comparison.