DVD Backup - technique, not licencing/copyright
I have a collection of school made DVD films, some of which are quite valuable as teaching resources (especially film of dodgy experiments with mercury etc) that I want to back up. This is in addition to making them available on ClickView, but we need to avoid compression losses.
What I'd like to have some view on, is how to do it. I'm thinking of copying them to an external HDD, and then storing that somewhere safe. What is the best way to create an image on a HDD that can simply be copied onto a new DVD in the event of loss or damage.
Is it best to simply copy the Video TS folder across? Or is there a better way to create a burnable image?