Greetings. I don't know if the following info is of any help. Bought Icarus including the True Scale upgrade - which would not open. Matter of fact, my computer didn't even recognize the disc. Later on I discovered that the True Scale is NOT A CD, IT'S A DVD. So, obviously, you must have a DVD reader if you are going to upload that one. Stumped me for a while until I discovered what was going on.

Ben Strasser