I've copied all files from Novell 6.5 cd to my computer for backup purpose. sorry I am saying that I've copied all files I didn't make iso or nrg of that cd. now that I've lot of scratches on my original cd I want to burn from backup. now I've burn all those files/folders to cd using nero my cd does not boot please help me to resolve this problem I want my cd boot able as was original.