[FIXED] Installation fails "damaged source file"

Hey all,
When I'm halfway installing PCM'13, the installation fails and gives an error for an "damaged source file".
Everytime I try it, this is the first file problems occur:

The disk is clean and undamaged, and I was succesfully able to install this game on my brothers' laptop, so this cannot be the problem.
Does anyone know what's wrong, and how I can solve it?
My PC specs are:
-Windows 7 (64 bit)
-AMD Phenom II X6 1035T processor
-NVIDIA GeForce GT330 2GB
-1 TB hard disk
-4 GB DDR3 memory
When I'm halfway installing PCM'13, the installation fails and gives an error for an "damaged source file".
Everytime I try it, this is the first file problems occur:

The disk is clean and undamaged, and I was succesfully able to install this game on my brothers' laptop, so this cannot be the problem.
Does anyone know what's wrong, and how I can solve it?
My PC specs are:
-Windows 7 (64 bit)
-AMD Phenom II X6 1035T processor
-NVIDIA GeForce GT330 2GB
-1 TB hard disk
-4 GB DDR3 memory