[QUOTE=Lars-Erik;2155681]I never have had this problem before.
Just started some weeks ago.
My drive has worked 100% for several years.
Could this have been caused by a firmware update?
Whould I go back to an earlier firmware (any recommended version).
It’s only on some DVDs, most are read 100%.[/QUOTE]
Yeah, as I said, this is a KNOWN problem with PX-716A drives. They can stop reading disks at any point, or have problems recognizing disks. This has happened to MANY people. It’s OLD NEWS. It’s not your fault.
Best thing to try is to open up the drive and clean the lens, or if you’re not comfortable with that, buy one of these and use it: