First re install your nero .and
A) Power Calibration is controlled by the recorder. Before any write operation, all recorders must do a 15 step power test to determine the optimum power for writing to the CD; this is called "Optimum Power Calibration"(OPC). And during the write, it continues to do this test to get the best write throughout the whole CD; this is called "Running Optimum Power Calibration" (ROPC). This whole process is controlled by the recorder, though initiated by programs such as Nero. There is an area on the inner part of the CD for the test and test data info to be stored. You can use this area up to 999 times.
So, when you receive the "Power Calibration Error" or "Power Calibration Area full" error message, then the cause will be either poor media, poor Power, or a defective Recorder. POSSIBLE SOLUTIONS:
1) A might enable the OPC on this medium
2) Try another brand of CDR or CDRW media.
3) Also try different power connectors, and for recorders, do not share power with other devices. It needs its own power connector. If this occurs with an External recorder, the power source in the chassis could be the cause. Take the recorder out of the external chassis, and connect it internal, as a test.
4) Try different configurations, such as taking the CDROM to the Primary IDE bus as Slave, and have only the recorder connected to the Secondary IDE bus as Master.
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Power Calibration error indicates that the drive hasn't been kept clean and is unable to guarantee a good write to disc... I recommend a wet and dry CD/DVD Cleaner disk with Alcohol on the wet side (Like Tape Head cleaner liquid) and let it dry for a minute then run the disc again... if it still happens the drive is on its way out.
The semaphore timeout period has expired refers to the fact that the driver is no longer communicating with the device and failed.
Each time a CD Burner is setup for a CD Burning session the burner hardware will perform a 15 step power test to determine the OPC for a Blank Media Disc, OPC meaning Optimum Power Calibration.
This test also takes place during the CD Burning process so the CD Burner can determine the best burn speed and method for the disc; this test is called 'Running Optimum Power Calibration'.
Although the test is performed by the hardware of the CD Burner, the device initializes the CD Burning Software for the test to take place. This is one reason why your software may report the "Power Calibration Error" or ?Calibration Error Full?.
With Power Calibration errors they can be caused by different factors and sometimes difficult to locate, especially if the errors are at random. Below are the known factors that will cause the Power Calibration Errors and how to check each factor, it is important that each point is considered if wanting to get to the bottom of the error.
Power Calibration Errors can occur when OPC or ROPC tests for the media disc so the condition of the disc, brand of disc and even the firmware for the CD Burner can be the cause for the errors occurring.
A device such as a CD Burners can have different problems if there is a power consumption issue with the system and the Power Calibration Error is just one of those problems.
If using either an internal or external CD Burner make sure to disconnect all other devices, except the hard drive and Burner, before attempting to burn a disc. Double check all cables for any faults and if possible test with a 2nd Data Cable. It is also advisable to disconnect the power connection for the CD Burner and test with a spare connector.
If you have no trouble with other discs, use them and put to one side the lightscribe, other than that try the burner in another pc or with other burning software, as you can see it's quite ridiculous what problems burners can create.