NJ5 on 06 February 2009
http://ps3.ign.com/articles/951/951560p1.html
According to the financial statement, "The METAL GEAR series is exhibiting its strength as a brand, steadily increasing the number sold year-to-date to more than 4.5 million units as of the end of this consolidated third quarter."
I think they've been selling a pack with the old games (notice it says metal gear series). Also those are shipped amounts as always in financial reports.
My Mario Kart Wii friend code: 2707-1866-0957
