I have had extreme difficulty backing up one particular cd, Easy cd creator, nero and some specialised software failed to do it, but good old XP Pro has delivered the goods. If you have XP PRO try this where nero, cd creator and the rest have failed! Place original cd in drive , then a blank one in your CD re-writer. Now goto MY COMPUTER,click on the drive with the original cd in. NOW DRAG AND DROP INTO THE CD-REWRITER DRIVE. Windows now makes a temp folder for that drive only right click and pick COPY TO CD you will now have a perfect copy of the original cd which Nero, ecdc etc wouldn't copy.