My only question is why???
Whats the purpose of this (Well before every act, and we don´t know how many are) installations, are small 100mb-500mb??? Why don´t put all in the first installation?? Maybe most of the game (25Gb) needs to be on the HDD and doing this they assure nice level of gameplay without popups or some kind of freezibng time... Oh man, I don´t know, but really want to know why...