I purchased and downloaded a Led Zeppelin song at 24/96 and the spectrum shows a brick wall filter at 20K like it is an upsampled redbook CD, it may be a 24/96 file but it is only about 5 Mb compared to the same song at 24/96 from HDtracks that is over 90 mB... In preferences I chose to buy and download at Ultra HD resolution. The Amazon file is also MP3.... something fishy at Amazon I think