there is a ton of pre-Decca stuff that Decca owned for years and that came out sporadically on LP (of which I have most) - there was a jug band CD, and another of old 20s and 30s black bands - I have this stuff, and the sound is the most amazing of ANYTHING I have heard of that vintage (you feel like you are in the room with these guys who are recording 60-80 years ago) - it is fantastic stuff, and there was probably tons more never released, on metal masters and god-knows-what, that we will now never hear in this kind of fidelity (another incredible one is the Bunny Berigan session from the 1930s) - there were Brunswicks they put out and other stuff, who-knows-what, now we will never know - to hear some of this stuff is to ride in a time machine. But now its over and gone - we will never get the unreleased stuff, as a matter of fact they probably didn't even know what they had - not to mention some glorious Armstrong, Fletcher Henderson, King Oliver, Joe Turner, Mildred Bailey, Chick Webb, Stuff Smith, Duke Ellington - a lot of which was put out only in horrible stereo with reverb - so save whatever LPs you have. It's like finding cave paintings that are then destroyed by a flood -