Great Trainers Video Series - has this resource survived?

In the mid-2000s, Ringside offered a video series called "Great Trainers", where guys like Ken Adams, Jesse Reid, Ace Miller, and Archie Moore gave 40-75 minute training sessions.

I always thought these would be great resources in the Classic boxing debates about technique that we sometimes get into, since in some cases it might be the only occasion these guys' teaching approaches have been captured on film. (There's also a video from Angelo Dundee made in the 1980s, although it's not by Ringside).

Does anybody know if this footage survives anywhere? Especially the Moore one? It would be a shame if this stuff just disappeared forever. Imagine how much we'd benefit from an hour of instructional footage from Jack Blackburn, for example.