Hi, I have downloaded iso images of various Linux distros such as Ubuntu 11.04 (around 700 MB) and Fedora 15 (3.4 GB) recently. I have burned them to a CD and DVD respectively. As you are aware once an iso image is burned to a CD/DVD it extracts and new files and folders are created on the CD/DVD and thus the original iso image is no longer there. This is atleast what I understand. Once you have burned these iso images to CD/DVD, the CD/DVD in question becomes bootable and one can install the OS on it ie Ubuntu or Fedora. I have deleted both the iso images - Ubuntu and Fedora - once writing them to a CD and DVD respectively. Now I want to make copy of these Ubuntu CD and Fedora DVD, how do I do so? I have Nero 7 ultra edition on my Windows XP Home pc. Can anyone please guide me? Can I use the CD and DVD to make copies for my friend so he does not have to download these 2 iso images? Since Ubuntu is on a CD, can I transfer/copy its contents to a DVD and use this DVD to install Ubuntu using Nero 7? Please guide me as I am a bit confused here, thanks.