Burning dvds and getting power calibration error using nero 7

while burning cd-rs the system works fine ,but burning dvds I get power calibrtion error help:Z:Z

Power calibration error. That’s one of the first signs of a dying burner. You can get a few more burns out of it by reducing your burn speed, but I’d start looking at Newegg for a replacement.

Please post an error log, and make sure you are using Nero 7.11.10.0:

A firmware update to your burner, or an update to Nero, may solve the problem.