I thought Sam and Shulze were buddies, as Sam sells video's with Dr. Shulze at www.sambiser.com and Shulze and Sam are in all of the video's together? The books and video's I have from Sam were obtained back in 1987 I think. It's been many years since I have had the collections. I rely on Dr. Shulze latest newsletters, videos, and audio tapes, however, the "Save Your Life Collection" with both Sam Biser www.sambiser.com and Dr. Shulze, are extremely thorough, and lengthy, as well as detailed.