game burning pro, help pls

[blackice2004]

i have a game image which is in nrg format, i check it by nero, it is data/data. i burned into cd-r, and it doesn't work, then i thought, maybe it is not a selfbooting disk, since i have checked the other games, which can be played well, are audio/data format. i dun know what should i do now. pls help. thanks first