I just stumbled upon this, and thought some of you might be interested. There's a DVD available with performances from the 1981 and 1983 Old Songs Festivals. It's $18 (with free shipping.) and is available at the link below (oldsongs.org)

There's a 6 minute sample on the Old Songs home page. (For some reason I don't see it on the actual Festival page.) I really enjoyed watching the sample, and went ahead and ordered the DVD – can't wait to see the whole thing! Take a look:

Old Songs Home Page - Scroll down for Festival DVD

(Scroll to (almost) the bottom of the page for the DVD info – right under the calendar of events item.)