For starters I would look on your local tv public broadcasting station's web site and see if they are offering any of his concerts in their fund raising. There are at least three of his "fundraisers" that I know of - his Wildlife concert, a documentary of his environmentalism filmed shortly before his untimely death and a new one I just recently saw entitled "A Song's Best Friend: John Denver" You can get those DVDs from your PBS station for a donation. Another place you might get a copy of the wildlife concert is by contacting the Wildlife Conservation Society at 1-800-4-Wildlife. It was the wildlife preservation group that JD thought was doing the most in protecting habitat and wildlife. And, of course, there is the local Borders, Hastings, Waldenbooks, etc., where you might locate a DVD in the musical concert section of the store.