Whats on disc 2?

Not sure if this should be in off-topic or here.
OK well, a few threads here for 3ds 2008 have CD 1, 19 parts. CD 2. 40 parts.
I only have the first 19, but I mounted it and its installing fine, Whats on CD 2 that needs 40 parts? Could it be handy stuff like plugins and libraries or something? I don’t know :S
Does anybody know?
Edit: OK I’ve installed it, with the 19 parts from CD1. It’s running fine, Everything is normal.. I wonder whats on disc 2!, I don’t have that much of a download limit..In Australia haha
Answer #1
Great. But how do we know what you were downloading? A game? An app? Which game?
Answer #2
“OK well, a few threads here for 3ds 2008 have CD 1, 19 parts. CD 2. 40 parts. ”
Thats in the first post, I’m downloading 3DS 2008