I'm not sure if this is hw or software but the burner is new and should work. I have tested both imgburn and nero, so far I trashed one 50gb and one 25. They are not cheap. One succeeded with nero, but it said it failed. But it worked nonetheless.
Any suggestions for other software or settings I should use when burning BD data discs without trashing discs?
The link under is to the burner I just bought. http://www.sony-optiarc.eu/products/bluraydrivesdesktoppcs/bd5300s.html