I picked up a spindle of 50 of these and they were not TY T02, they were Sony D11. Quality was very marginal and my PX-716A limited the burn speed to 4x. One of my BenQ burned coasters with them at 8x and 16x, as did my Liteon 1633S. The drives that burned them successfully (like the LG 4163B) often only burned them at 6x. The DVD-R's are a more solid choice I my experience.