Is there an expert Nero out there that can tell me what power calibration error is
and how to fix it???Certainly no 'expert' but Google came up with 3,890k hits, here's one of them.

Below is an extract from another:

"Power calibration errors are typically related to the media that you’re using. Your DRIVE calibrates the power of the laser each time a CD-R is inserted into the drive. Each disc contains a reference value to enable the drive to do this.

There’s also an area on blank CD-R and CD-RW discs for the laser to attempt to power up to the required level. If it fails then the power calibration error occurs. You can try and see if there is a firmware update for your drive, which can sometimes resolve these problems. However, without the model number of your drive we’re unable to point you in the RIGHT direction. Alternatively, try a different brand and speed of media, which is the best way to resolve these errors."

The underlining is mine, the info you supplied in your post is the poorest, not EVEN a mention of which version of Nero you are using! Please read this..

Make Google your friend.Excellent advice, Dusty, all of it, especially the LAST bit.

Dusty...

I agree with contrex...very well put...

Google...the world is at your fingertips...but, sometimes you have to let go of the hand that's leading you...Very SORRY I was doing a fast post and just reaching for straws
Nero version 6.6.1.15
Mitsumi CR-48xcte
win xp home 5.1I think the drive is malfunctioning as well. I loaded roxio 8 and received errors,
Elaborate Bytes, also errors, and a free burning program that also will not complete.
They only start and drive spins up then failure.Typically related to media quality/compatibility but also related to drive failure!

IE write laser failing/failed