I just bought a LG BP06LU10 External Blu Ray Drive. I just burned a 23 GB movie in mkv format to a 25gb bd-r blank disk. The movie does not take up the whole disk space. There is about a centimeter left of unburned area near the edge of the disk. I used Nero 11 to burn the blu ray. Can someone please help me determine why the burner didn't burn the movie all the way near the edge of the disk?