You cannot simply "run" the Disc 2 ISO in Xenia . You must extract and install its contents into the emulator's virtual file system:
From that day on, Alex became obsessed with uncovering the secrets of "Forza Motorsport 4 Disc 2 Iso". He spent every waking moment exploring the game, searching for more Easter eggs and hidden tracks. And though he never did find out exactly what the mysterious "Level 2 Access" meant, he knew that he had experienced something truly special - a journey into the very heart of the game itself. Forza Motorsport 4 Disc 2 Iso
Disclaimer: Downloading copyrighted ISOs from unauthorized sources may violate copyright law in your region. This article is for educational purposes and legal backup creation. Always dump your own discs if you own a copy. You cannot simply "run" the Disc 2 ISO in Xenia