You guys are talking informercial politics over the Anna. At the moment, I am just listening to anonymous digital files and making my own preferential comparisons. I am not making any claim as to which is which. That came from somebody else, I was merely speculating on his speculation. I had also forgotten the "history" between John Elison and ML, but which now I can conjure quite well to muddy the waters.
I am sure Fremer would hope that the Anna/Caliburn likewise would stick out like a sore thumb in superiority. Maybe John Elison has a way of analyzing the waveforms to extract the file with a unique signature to determine which file is the Anna, I don't know. Fremer was either courageous or foolhardy putting the files up, but I tend to think he was displaying some fortitude.
What DOES a digital file tell you? It can inform you about relative dynamics, depth and quality of bass, separation of voices and instruments in the sound field, whether a high dynamic content is rendered smoothly or jagged and sawtoothed, tracking, speed stability, relative surface noise rendition, size of imaging etc. etc.
What CAN'T a digital file do? It can't inform you about ultimate charm factor/smoothness of a cartridge or playback system or ultimate tonality/depth. The digital files I have made myself and heard on mine and other's systems are always a tad brittle, noisy and flatter by comparison to the real thing.