BM writes: "The original concept of the Rock Band Song Pack was to make up for the lack of support for downloading new songs in the PlayStation 2 and Wii versions of the game. Rock Band Song Pack 1 contained 20 songs which were already available for Xbox 360 and PS3 owners to purchase and download, giving PS2 and Wii gamers a feasible way to expand their game. Later, the AC/DC Live: Rock Band Song Pack was expanded to include Xbox 360 and PS3 versions, and Rock Band Song Pack 2 is similarly available on all formats. Song Pack 2 contains an eclectic mix of songs, as you would expect from a compilation of this nature. The full track listing appears at the end of this review."