Actually, I thought I remembered seeing last summer that the tapes were recovered in Australia. I searched and found this article:
http://www.express.co.uk/posts/view/110442/WORLD-EXCLUSIVE-N...
http://www.express.co.uk/posts/view/110442/WORLD-EXCLUSIVE-N...
A more detailed article here, "Fridge-sized tape recorder could crack lunar mysteries", ABC News, Nic MacBean ~ http://www.abc.net.au/news/stories/2008/11/10/2415393.htm There is a point made in the article by Dr. Harrison (Jack) Schmitt - last astronaut on the moon - that the "dust detector" data collected by Dr. O'Brian is the most significant environmental problem that has to be investigated. Finding the vision tapes while historically significant isn't as important as the data for future missions.