For your consideration, here is the What Killed The Mega Beasts DVD, Used, 2002, from The Discovery Channel, no. 13132, run time 92 minutes.  The DVD is in nice shape.  The case has some wear and a nick on the front.  It will be mailed in a box for protection.  Item pictured is the actual item up for sale and comes from a non-smoking household.  (602.142o-.10dx30)