My parents were given two Sony DVD+R discs to create the back-up, but when started, the application pretty soon gave an error (mostly about the power schedule) and the DVD is completely useless. After some searching on the web, I found suggestions to use 'good brands', or else the creation would fail. I've tried a Sony DVD+R disc, a PHILIPS DVD-RW disc, a Bruna DVD+R disc, but all of them made the application hang. The solution is pretty simple, but not documented very good on both the Toshiba documentation as well as the web: use DVD-R discs (DVD minus R discs). The brand doesn't matter. When I used two Bruna DVD-R discs, the application finally created the back-up discs. My parents can now finally screw up their notebook in a safe way.