Hi, I have recently purchased several Verbatim DVD+RW medias to burn some ISO images using my Matshita UJ-845S (firmware D100) DVD+RW drive.
Unlucky to me.
It fails to burn from the very beginning.
In fact, it just won't start burning.
My DVD+RW media is Verbatim DataLifePlus 4x Certifed DVD+RW SERL media.


And DVD Identifier reads it as follows:

----------------------------------------------------------------------------
Unique Disc Identifier : [DVD+RW:MKM-A02-000]
----------------------------------------------------------------------------
Disc & Book Type : [DVD+RW] - [DVD+RW]
Manufacturer Name : [Mitsubishi Kagaku Media]
Manufacturer ID : [MKM]
Media Type ID : [A02]
Product Revision : [Not Specified]
Blank Disc Capacity : [2,295,104 Sectors = 4.70 GB (4.38 GiB)]
Recording Speeds : [1x-2.4x , 1.6x-4x]
----------------------------------------------------------------------------
[ DVD Identifier V5.0.1 - http://DVD.Identifier.CDfreaks.com ]
----------------------------------------------------------------------------

And here's what Nero Burning ROM says when tried burning this media on my Matshita UJ-845S

Caching of files started
Caching of files completed
Burn process started at 4x (5,540 KB/s)
Start formatting disc before burning
Formatting disc failed
E: MATSHITA DVD-RAM UJ-845S
Could not perform start of Disc-at-once
Burn process failed at 4x (5,540KB/s)


And when I tried if using UltraISO before I installed the latest Nero, it said:

Power Calibration Error


I tried to burn at slower speeds, but it still fails to burn.
And other DVD+RW media I have used is working just fine. (Fujifilm DVD+RW 4x media), althought burning software won't see the maximum burning speed. (Nero says 2.4x is the maximum speed it can be burnt).

Does anyone know if there's any way to resolve my issue?

I get a 'Power calibration error' or 'Calibration area (almost) full' error message. Why?

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). 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.

If you receive the "Power calibration error" or "Power calibration area is (amost) full" error message, the cause will be either poor media, poor power, or a defective recorder.

Please try the following solutions:

* Update the firmware of your recorder. Please check the manufacturer's website for the latest version.
* Try another brand of media.
* Try different power connectors, and for recorders, do not share power with other devices. It needs its own power connector. If the error occurs with an external recorder, the power source in the chassis could be the cause. As a test, try to take the recorder out of the external chassis and connect it internal.
* Try different configurations, such as taking the CD-ROM to the primary IDE bus as slave and have only the recorder connected to the secondary IDE bus as master.
* Send the recorder in for service.