Suggestions:
Please follow the suggestions and answer the questions we asked in your thread:
http://club.cdfreaks.com/f116/hi-eve...8/#post2053604
Your answers will help us to try to isolate the cause(s) and in turn, help you. I see that you weren't able to fire up nero, but have you tried it with a blank disc as I suggested. Also the burn logs will be very helpful. Please refer to your original thread.

Thanks