Thanks to the lovely DR Elmore and bk, one of my answers to the LP not on CD question has been rectified - the soundtrack to PORGY AND BESS which I received a couple of months ago and have enjoyed several times since receiving it. I never would have thought to look on Ebay if not for their suggestions.
Now, all I have left is STARS OF THE SILVER SCREEN, an RCA LP featuring original vocals of movie songs sung by the likes of Fannie Brice, Everett Marshall, John Boles, Bebe Daniels, Gloria Swanson, Helen Kane, George Jessel, Charles King, etc. These are not soundtrack recordings but rather studio versions of songs the stars sung in movies from 1929-1930. I finally transferred my scratchy LP to audiotape so I could listen to it without making the LP sound any worse than it already does. Still wish RCA would transfer this to CD.