Back in 1997 or so RCA/BMG did a series of reissues of artists who originally recorded for Victor and Bluebird. While some of these were necessarily taken from records, when possible these were remastered from the original metal masters. The songs remastered from metal sound simply stunning, by far the best reproduction I've heard of music from the 78 era. My only regret is that, though it was announced several times, the Willie McTell disc never saw the light of day.
Any idea what that album is called? I'd love to track it down.
I thought of another one this morning: Willie Walkers three cuts are all absolutely fantastic quality.