Re: Overcutting their artists...
I bought some 24/96 music to do a test recently. I downsampled it to 16/44.1 and null tested the files (this involves making an inverse copy of one and combining them...which if you did with identical files would produce a file consisting of nothing).
There was absolutely nothing audible in the difference file. 4 minutes or so of complete silence.
It did have information in it, but that was a small amount at around 17 KHz and -80dB (one, it's a higher frequency than most can hear, 2, it's at a level well below that of "silence" in a normal listening room (or even studio)). There was some other stuff in the difference file, at over 20 KHz and at between -100 and -120 dB.
I have done this test a few times now and it's always the same story.
A CD is enough to give any human the absolute maximum fidelity they can perceive.
The problem is that in recent years, CDs have been over compressed (dynamically) and often to the point of clipping (the peaks are simply cut off). This gives them an initial LOUD sound which is apparently great for radio, but makes them sound bloody awful.
I have a stack of HD recordings now, which are all better than the CD. But each and every one of them sounds equally good when downsampled and burned back to CD.