I would note that the National Archives made an agreement with Amazon to allow individuals to purchase DVDs of National Archives material through Amazon.com. The Federal Government has no monetary interest in the sale of any of its material, other than covering the cost of the issuance of such materials, which it releases for the convienence of individuals interested in it, not for any objective of monetary gain. Case in point - the national archives allows anyone to download this video off their website free of charge.