Yeah, I do. Nothing like preventing the loss of a DVD as opposed to resucitation of a damaged DVD.
When my grandson cracked his Spiderman disc (fortunately, it was disc 2 of 2 with the filler, not the main movie),
I defined my fair use rights
as making a back-up copy ASAP (as soon after purchase
Jean, to the immediate question:
It's not always possible to do that and recently I had to do one that was scratched to the point of unplayability.
I used an NEC ND-3520A, which information doesn't help you.
It's due to the incredibly short product life cycle.
Once a good reputation is established, the item is no longer available.