Soldier Of Fortune CD-Copy(English)
 

My friend copied Soldier Of Fortune and it installs and plays correctly. But when I copied the cd and use it to install Soldier Of Fortune on my cpu it comes up with and error!!

But the odd thing is, i can use my friends cd to install and use my cd to play. So in other words, it won't install but it will play. Can someone help me so it WILL install?