Well My Mate Brought GOTY Round And Used Disk 2 To Install Shivering Isles We Went On GOTY And It Worked Fine Then My Mate Went Home With The 2 Disks From GOTY Then I Went And Got My Oblivion (The Normal One) And When I Loaded My Game From GOTY I Ended Up In A Shop In The Imperal City I WAS LIKE WTF ?

Trying to get content from a borrowed disk is basically piracy.