[Rengoku]

I've got a game that needs patching from Pal to Ntsc, Colin Mcrae 3 to be exact. Anyway, The patch requires that I patch it to the file "ColinM3-TuF (12).gi". The problem is the image I've downloaded is in ".nrg" format (Nero image). When I try to use ppfomatic to patch it to the nero image, it gives an error. Is there anyway I can convert the image to ".gi" format to patch it? Thanks!!