Yep quite a package, 3 discs titled subsistence persistence and existence. In addition to a host of extras you get a 3 and a half hour movie and a chance to play MGS and MGS2 the games that started it all (see history post).
A walkthrough From Samurai X on Gamefaq
Konami Game information site
elderly tags ps2 metal gear solid 3 subsistence mgs3 limited edition walkthrough website details cheats hints tips