Question regarding NBA 2k11 release variations

Aloha guys,

quick question: I got my old PC CD of NBA 2k11 laying around here and it has the NBA 2k10 soundtrack on it. I didn't know this to be the case until recently. Anyone knows about variations being printed?

That's the first time I'm hearing of that. The only two versions of NBA 2K11 that I know of are the North American and International releases, with the international version having some issues with missing court logos (if I recall correctly).