I can definitely recommend these discs. I have been using these discs for a few years now and have never had any problems. As another reviewer has mentioned, the only problems I have ever had were down to my own mistakes or experimentation with different burning applications and settings.
To anyone who has had problems with these discs, you will probably find that you need to either update your firmware on your burner, depending on what you are burning, maybe you will need to use a different burning application, for burning iso type images you will probably be best using either imgburn or clonecd. If you are burning individual files and folders, nero or roxio are probably the most reliable.
The most important mistake I find people make which can cause a bad burn or failure is the burn speed they use. I never ever burn at the maximum burn speed, I only burn at a maximum of 4x if the disc speed is capable of 8x or greater, but I prefer to burn at 2.4x on dual layer discs as I find it is more compatible with readers, especially those on consoles.
I hope anyone reading this review finds this information helpful.