Great job, Stefan. A double CD with all the tracks on what you have listed as DLP 1975 was issued in 1996 by Gold Sound label: Jack Elliot & Derrol Adams [note wrong spellings] 'Selection of America' Gold Sound DCD-768-1/DCD-768-2. More tracks than on the 1998 A World of Music CD that you list. Unfortunately, there is no information at all. I got my set through Bugsy. Send him a personal message and he may be able to give you some information about them.--Stewie.