I bought 100 of those disks when they were on sale. I have a PX-716A, A BenQ 1620 Pro, and a NEC 3500A. They won't burn well on any of my drives. No matter what I burn them on and scan with the BenQ, the burns are very ugly, in fact, so ugly that I wouldn't trust anything to them. I've burned almost all of them and that's about all they're worth, in my opinion. I tried to break a couple of them and thy have 2 layers: 1 layer of dye and what seems to be a clear plastic coating over that. That may be the Accucore. I call it AccuCrap. I also have some regular Sony +R D11 disks. They burn no better. I wonder if it's that the BenQ can't read the disks very well. The PlexTools TA test confirms that the disks are bad.
The PlexTools scans look a lot better but PlexTools scans the disks at 2X. I've about decided that I'll never buy anymore media that was made in Taiwan. The Sony's that I got MIJ were Taiyo Yuden and all my drives love those, but the -R media doesn't seem to be as high quality at the +R disks. I've never had TY -R disks yet though.