Hi,
i had the same Drive in my brandnew Studio 15. After i flashed the new firmware 108B, i still got the same problems: i couldn't burn a single dvd+r...
In another forum i found a solution that works for me: i installed the Intel Matrix Storage Manager and now i can burn dvd+r's and erase dvd+rw without problems!
64bit: http://downloadcenter.intel.com/Detail_Des...64&lang=eng
32bit: http://downloadcenter.intel.com/Detail_Des...32&lang=eng