I downloaded a movie and would like to burn a VCD with an external drive and nero. Every time I burned, I failed. It ruined 10 of my CD-Rs. The message 'unspecified recorder error' always appears when it fails to burn. Then, the drive and my machine hangs. I have to restart my machine.I can check the details of 'failure report'. What's the problem about that? How can I fix the problem?