Lord Lav
Beatmaker
....then give this site a go. I'd rather FLAC's or some other lossless file type, but then again some of this stuff is 1920' and 1930's so I don't suppose there would really be much difference. Check out anyway and enjoy;
http://www.jazz-on-line.com/pageinterrogation.php
http://www.jazz-on-line.com/pageinterrogation.php