These were used with LG Electronics 14x Internal BDXL Blu-Ray Burner Rewriter WH14NS40 and so far it has performed flawlessly. Initially I was bit skeptical about them but I am pleasantly surprised by quality of the item. Granted these are not for everyone's needs but for archiving or taking backup of large important files these come very handy. I used imgburn freeware application and all of the discs burned so far verified perfectly with no errors. The cake box had little damage but the discs all came shipped in good shape. I would suggest that the manufacturer starts to use better cake box to protect them during shipment. But at this price point I would say it sure suffices the needs.
You can get one of these from Amazon by using the link below: