GTA and Nero - Burning Rom?

[anomaly]

im trying to make an image of Grand theft auto (following directions from GCW) and I get some "cannot copy data" error or something similar. anyone know what I might be doing wrong? some setting im missing? I have no Idea, heh. the Nero help files arent too informative either. I dont want to burn the game, just the image. thanks people. later.