You see the photos I use on my blog, but many are personal photos, of family and friends etc.
I read that there was an original forecast for the life of a dvd of about ten years. This was very conservative and disks are lasting much longer. Nevertheless, I decided I would also upload all the photos to Google Drive. Drive has a generous enough free storage limit, and I have uploaded all digital photos from DVD from 2004 to 2008. Once I reach the free storage limit, I will pay for more space.
As I said, I burn two dvds of photos, one as a back up, and I randomly check a few folders on the burnt dvds to make sure the photos are there. I don't know if it was a bad burn at the time and I missed it, or the dvds are not holding up well, but I have lost some photos. I really think the dvds are failing.
Recently, I have only used Sony dvds, but in the past I have used Imation, Verbatim, Maxell and TDK.
Fortunately I only bought two single TDK dvds, as they are the ones that have failed. Unfortunately, I actually must have bought four, as the back up dvds are also TDK and they too have failed. It is only the first four folders on both disks that have failed and I retrieved some photos from them, like photos of the late Dame at her 83rd birthday. She died less than six months later. We are all there in the photos, but not Dame M. Failed photos. Little Jo, face down and bum up and sound asleep on R's bed at the age one, gone. I may have such photos saved elsewhere or on FB.
So, TDK really has done amazing things to my system and they are not good.
If you want to save photos, back up, back up again and then back up once more, using a variety of methods.