Hi,
the message snippet "on write(16, 16" probably stems from libburn.
But there should be more text telling which kind of error happened.
Like
Code:
libburn : FATAL : SCSI error on write(0,16): [3 0C 00] Medium error. Write error.
If your drive too indicates "Medium error" then the problem would be in
the relation of drive and medium. The burn program is only the messanger
which forwards the drive's reply.
Have a nice day
Thomas