I recently bought a copy of Doom 3 for Xbox, having seen it on the 'compatible list'. The game will not start, and it doesn't give any options to do anything. From the original post, the following questions are suggested;
What game are you trying to play?
Is it a disc or downloaded version?
Xbox original disc
What type of console are you using?
Normal XBox 360 (cream colour)
What size HDD are you using?
What error code or message are you receiving?
Unable to play disc.
The disc works fine on my old original Xbox.