I wouldn't have thought this necessary, I imagine most if not all peeps back up their own images to disc anyway, I know I always do.
I have a DVD-RW I use until it's full, then transfer the entire disc to a DVD-R and start again!
Why pay for something here [because they would charge for this] when you can do it yourself for free!

Injustice will be avenged.
Cofiwch Dryweryn.