yep... I've downloaded a file named ut2k3.iso (that I know to be a the good one) and I want to burn it on a cd (as we usually do with an iso extension). When I've tried to burn it, everyting goes ok but when I tried to read it, it was ... an iso on a cd... nothing more... So now... after 2 try... and 2 lost cds.. I want to be sure. I've read we need to renamed it with the extension .nrg that is actually the extension of nero burning rom prog. Is this the technic or there's something to check in nero that I have missed ? thanx