It would not play any DVDs - something mechanical as far as I could tell.
The disks used are Panasonic CD-RAMS
I think they were all finalised - I was transferring images from VHS tapes mostly, although some were recorded directly from Freesat.
The old machine went months ago. I contacted one of your team about it and found it needed technical work of some sort and gave it to the supplier of the new (reconditioned) unit