Coming to US Blu-ray on March 24, 2015
A DVD company I'm not familiar with, Gorgon Video, has announced that this film will be released on Blu-ray, along with another Arthur Marks film, A WOMAN FOR ALL MEN (1975). The double-feature will also have some supplemental features. The street date is listed as March 24, 2015.
This may be a Blu-ray exclusive. If I hear of a DVD release as well, I'll update here.