The text you are looking for likely references the or system requirements for the PC version of the game. File Details Game: The Lord of the Rings: War in the North Publisher: Warner Bros. Games Developer: Snowblind Studios Platforms: PC (Windows), PlayStation 3, Xbox 360 System Requirements (PC)
You can still find used discs at retailers like GameStop or eBay . File: Lord.of.the.Rings.War.in.the.North.zip ...
Some third-party resellers still carry keys, though prices are often inflated. The text you are looking for likely references