I believe most of the railbird videos were made by J.J. Jenkins in California. A lot of copies of his stuff are around and constantly being sold on ebay. Quality is fair to poor. Most of it is 1992 or 1993 footage of events or gambling at Hard times, Bellflower.
The credits section of Eddie Robins "Shots, Moves, & Strategies" says JJ was an instructor at the House Of Billiards in Van Nuys, CA.
It lists a number and address if you want to try and contact him. Don't be surprised if the info is out of date, though. It says:
For a catalogue, contact JJ of Pool Action Videos at:
J.J. Jenkins
5424 Vineland Ave
North Hollywood, CA
91601-2727
(818) 506-6479
Good Luck