"Volva Stav Exercises" from the Volva Stav Manual by Kari Tauring (available on http://karitauring.com/shop.html through lulu.com)
The original DVD recorded at the University of St. Thomas by Kari Tauring and John Faeth for the purpose of teaching. Over 50 dvds were distributed. Glad to add this to the greater body of knowledge at this time! KT