I'd pack as much info as possible but since I cannot assume this alien race speaks or can decipher our language, I'd make it a graphic. We'd need a small generator/some kind of energy source..rechargeable battery system.. Then when the capsule is opened, this hollogram video would begin to project the history of the world as we know it..kinda like they did on "mission to mars" the movie...unless it was "the red planet"..I forget..but if you've seen it you know what I'm talking about...

But if these aliens cannot see in our wavelengths or intepret graphical data..then that would be no good..

So I'd also try to find some other digital alternatives to relay info...

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All I know is I know nothing - Socrates