Themken: Fifteen hours for 3.9GB....and that is just ONE of the bin files. Your internet connection sure is unsuitable for downloading games :-( but the game is big enough that I also would need around 2½h for all of it (if I calculated correctly).
Sounds like you are using Chrome, which I do not so am making educated guesses here, and the file has not downloaded completly and correctly :-( Is there a setting in Chrome to resume or retry downloading a file? That way you might not have to download every single bit again.
That's why I still haven't played this game, because I couldn't psychologically bear the amount of time it took to download. If the file is damaged I'll have to download everything again, BUT if what says Caesar above here is true, I have no problem and I'm just being paranoid.