Wow. Someone is selling a DVD that you can download for free. Check out the plasma/lcd forum at htt://www.avsforum.com and download the image for free.
I recently upgraded my 2 year old Panasonic 42" plasma to a Panasonic 50" plasma. Even though I play lots of console games, I've never seen any sign of burn-in or image retention on either one. I followed the advice posted at avsforum, lowering my brightness and contrast (which matched my Video Essentials calibration results anyway) and just used common sense. Not only have the static images not burnt in 'very fast', they haven't burnt in at all.