By definition, any recording that came out before approximately 1982 HAS TO be digitally remastered for CD, because the original mastering was for vinyl only; there were no CDs

.
But to paraphrase what I said earlier in the thread, it's not digital remastering's fault that not all MEs do a great job every time. It's also important to note that not al remastering jobs have the same source copies or source copy quality to work with. There are some remastering jobs that absolutely suck, and others that are great. Usually the differences can be more subtle, but the difference in results can be striking.
I find this is most evident on compilation CDs and greatest hits collections, where one might find two, three or four different remastering jobs on as many discs done to the same song. Two of my favorite illustrative examples that I like to show people from my personal collection:
I have three versions of the "Ballad of Peter Pumkinhead" by XTC; the origianal CD release, a "best of" XTC compilation CD, and a compilation CD of selected hits from the 80s. All three are different, all three sound fine, but the compilation CD has a punch to it that not even the original has that just sounds brilliant. The opening guitar riff just cuts throuh the air like a bolt of lightning, and the initial drum riff has a similar punch to it. That punch is just not quite there in the other two pressings.
The second, more obscure one (except to fans of alternative album radio

) is "Belly of the Whale" by Burning Sensation. This was on a vinyl-only release, and to my knowledge the album has never been re-released on CD - not that I have found before, anyway (it's been a few years since I checked.) It does, however show up on at least two compilation CDs, one an album rock compilation and another a reggae rock compilation. The reggae rock version is amazing in that - purposely or accidentally, I don't know - if you have your speakers set up for proper stereo imaging, much of the mix takes on a 3D image. For example, the main rhythm guitar actually seems to be emanating from a point
in front of the speaker plane. Pop the other CD in and the image collapses to a flat left/right soundstage.
I never had a chance to hear the original vinyl version on anything but radio (which doesn't count) so I don't know whether that imaging was in the original master, or whether it's a purposeful or accidental effect on that one remaster's part. but the result is really nice, and noticably different from the other one.
G.