I recently purchased Dual Layer R+ DVDs (Memorex) so that I can perform a full backup of a system. But unfortunately, the backup fails with Windows 7 complaining that it could not verify the disc and there was some write error. Here are the details of my system: 1. Win 7 Home Premium 2. Dell Inspiron 1764 - hl-dt-st dvd+-rw gt32n (DVD DL Writer) 3. Trying to create a System Image using DVDs I need to resolve this urgently as I am shipping this laptop to my sister and shes very naive when it comes to computers. I figured a restore DVD + System Image would be the easiest for her to "format and reinstall" everything. Plus she doesn't need to bother about activation and other crap.