04-13-09: Paulfolbrecht
I don't think it's resolution - cause I tried SACD for a while and it couldn't equal vinyl either.
SACD still can't touch analog in fine resolution. It's better than red book, but it's still not good enough.
There could be jitter and other noise issues as you mentioned, but I wonder if it doesn't come down to phase relationships. In an Absolute Sound forum, Bernie Grundman said that the one thing LPs do very well is preserve phase relationships, and that is essential for imaging, soundstage, and "hearing the room."
The thing I think is most important is how well a medium resolves tiny changes in amplitude. 16-bit red book has at best 64K increments of amplitude. At 2.7 Mhz sampling rate, I'm guessing SACD provides 2.7M increments of amplitude. 24-bit (as in DVD-A) provides 16M increments, which I think brings us closer than any of the other digital formats. 2.7 M increments simply isn't enough to replace the infinite amplitude resolution of analog. The 16M increments of 24-bit gets you about 80% of the way there in my estimation.