Hi everyone,
As mentioned in an earlier thread, I bought the Bernstein/DG Mahler Symphonies box set this morning from iTunes. I am only really familiar with the Sixth and to a lesser extent the Ninth from this set, so I will focus my comments on those two works and leave it to those more experienced to comment on the other works.
After listening to a little of each movement from both M6 and M9, I can conclude that yes, there are sonic differences between the previous releases and this latest one. I found that I could definitely hear more hall noise than before--especially in the quieter passages. In the Sixth, I noticed the harp part a couple times in the first movement where I previously did not know there was one.
This "added" detail is kind of like what we saw with Sony's remastering of Lenny's first cycle, but on a lesser scale. Personally, having these extra details, particularly the background noise in the hall, serve to give the performances that "live" atmosphere that so charges any recording.
One thing I was a little dismayed by...in the beginning of M5 and the Andante of M6, and probably other places as well, I noticed a little distortion--a digital "roughness" to the tone that I do not remember being there in previous recordings. I do not know if this is due to the 256kb/s M4A compression used on iTunes, or if this is a problem on DG's end. If it is an iTunes compression problem, this would represent the first time I have noticed problems of this magnitude in a compressed iTunes file. If this is a DG problem, well, someone should have caught that. Thoughts?
[Update: The sound to which I am referring is like what one hears when a CD skips. Apple refunded me the cost of my purchase with no questions asked, so bravo to them for taking care of the problem promptly. I ended up buying the set directly from DG in lossless .FLAC format.]
Best,