help needes with Project Gotham Racing 2

[kopp73gr]

hello
can somene please help me with Project Gotham Racing 2 I have been trying to make a back up for it, I have read all the 5 privious post about it but seems like I am the only one having thise problem.
I extract the file from the XBOX to the pc via ftp , I delete the tow dummy files and the files in the XDemos folder , convert it into a ISO file using Xiso and then burn it with nero ( I have burnt all my Xbox back ups with nero) after that is done and a atemt to play the game, I get the intro of the DVD ( microsoft ......... ) and after that it stops
can somene please help ?
P.S
sory for the bad spelling