Cant burn gameshark cdx, plz help!

[cervantes]

I bought EGG in us version, my DC is PAL, i tried it with utopia, it doesent work, so i d-loaded gameshark cdx and burnt the cdi-file to a disc with nero burning rom, but when i put the disc in the DC it acts as if i put in a music cd. What is wrong??? id so appreciate some help!