your test is a good one and i tried it years ago. i used the breeders 'pod', about as hifi a rock record as you can get. i heard a tiny, tiny difference in the converted file, if i really listened. it wasn't anything close to a significant reduction in quality.
Really? Exactly as I described? I find that to be pretty suspect, and I don't believe you, why didn't you mention that from the beginning? I call shenanigans. Even if what you say is true, I ran that test myself using a really nice boutique converter and the results were there, I used to use the sample to illustrate this very point to my students. Besides, just because you couldn't hear a noticeably significant difference, that doesn't mean that I wouldn't have.
i uploaded the full original and converted files of my little sample just for you.
which one sounds terrible?
They BOTH do, hahahaha! Kidding, although I appreciate your all that hard work and effort on my behalf, and I truly do, but I'm not around an adequate set of studio monitors at the moment to hear your sample, and when I do get around some, I'm probably not going to care enough to remember.