A long time ago, I had an issue where I could not get a DL Verbatim disc burned. That was all I ever used for a long time and still do. about 6 months ago, I bought a laptop with a Dell separate DVD Burner. Just for the heck of it, I figured I would try to burn a DL disc on the laptop and see what happens....IT works !!!! I just tried burning the same disc on the PC and it would not burn, saying it must be bad media. Then I plugged in the Dell burner to the PC and tried burning the same disc....IT works !!!!! All I can assume is that the burner in my PC is on the fritz even tho it will still burn single layer discs but not DL discs. Oh well, that PC is starting to get old anyways, that's why I bought the laptop. Something to think about !!