Album: As long as it's a CD that I can use for a signalling device, I won't be picky...I want long playing time and max variety. Boogie Nights soundtrack.
Book:
Mate: I can't post a pic of my GF without permission - 2+2 could get sued! WTF are you thinking???
Drink: Some kind of clear alcohol that is also flammable. Everclear.
Tool: Dead. After we tire of his hijinx, we can bash his head in with a rock and then eat him. If Dead is not available, second choice is a good saw or a machete, as we'll need to make some shelter.
However, if there are many trees, and all I need to do is fashion a lean-to or something, this might come in handy-er...(although I notice that unlike the SA Knives, this doesn't have a magnifying glass - I'll figure out how to make a fire):