Finally, a warning for anyone thinking about buying it: "Spank Your Buddy" is a silent movie that was shot on 8mm film. To market it in video format, Hal added a really poorly dubbed soundtrack that is laughable at best- and quite distracting. Also, to show how things have changed when it was released, the going price for the video on VHS was $79.98 plus postage!
Filmco no longer make male spanking films, and these classic films can not be difficult to track down. However, if you look hard enough, they are still available on various sites, mostly as parts of Spanking compilations. TLA appear to still have the whole set however, mostly as part of large compilations: HERE