I have a Sony DMP-BD89 Blu Ray Player that I've had for about a year or two. I just went to watch my back up of Hacksaw Ridge and it won't recognize the disk. It won't recognize any DVD+R DL recorded disks, but it will recognize DVD+R disks, and the purchased copy (store bought) version of the movie. It's always played my DVD+R DL disks just fine. I tried cleaning it with a cleaning disk, opened it up and sprayed some canned air and no change. Has anyone else ran into this problem? Maybe it just gave out. I just finished watching all 7 seasons of Sons of Anarchy (not a back up) and it played fine. I did have that happen to my computer DVD drive. When the drive gave out it would still recognize all but dvd+r dl disks. I figured I'd ask if this happened to anyone else before I go out and spent the money on a new Blu Ray Player.