if you have XP it is built into the operating system, so i wouldnt see why you would have a problem burning 2 cds at once, all you do is drag the files to the cd-rw youre wanting to burn to and click "write these files to CD" now if youre doing a disk-to-disk copy, you will need some 3rd party software, but you could do one roxio and one nero or something, do you have 2 cd-roms as well? cuz youll need those for disk-to-disk copying