Most (if not all) of the masters are owned by the leaders of the dates. Many of the issued cds are legally questionable. I know Mary Ellen Rouse (Charlie's widow) had to hire a lawyer to get her masters back and stop the marketing of the cd.
I believe the date with Bartz, Hancock, etc was a Black Lion recording currently owned by DA Music.
Clifford Jordan owned his masters and all the stuff in the "Dolphy Series" - Cecil Payne, Charles Brackeen, etc. I believe he sold the Sanders master to Arista (or someone). I know this 'cause he offered the lot to me.
This is a mess, never to be really resolved.