I would like to know how I go about verifying that the disc is working.
I am not sure how to verify unless you start using them.
FYI ...............
If it is financially feasible, buy an external harddrive instead of using DVDs.
A 500 GB ext hdd can be had real cheap.
I use a 1TB ext hdd to store my system image backup. It takes about an hour, and I don't have to sit by the computer feeding it with DVDs whenever it asks for.
Besides, you don't just do it once and that's it. You'll need to do it regularly so that your image will be kept up to date. Imagine how many DVDs you will have to organize and store ?