Tried that as well. Did another fresh install of the game, verified the integrity, and it was still 3.94MB.
On a side note, trying to follow the tutorial here, but I don't understand what this command thing I'm supposed to be doing. I see nothing for me to insert a command anywhere. Like when it says this:
"Then fire up your command line again and run bnk_pc_packer to pack up your new radio station .bnk_pc file. the bnk_pc_packer program works like this:"
What command line? I don't see anything in any of the programs to use a command line. If I try to open the bnk_pc_packer (thinking I have to type a command in there), it just closes instantly. And I don't see anywhere else that I am supposed to enter a command line.