This guide should help you fix the ‘power calibration error’ if you happened to come across one, which might be the reason you are reading this guide.

Their could be several possible reasons and solutions for the above error, basically what is happening is for some reason the CD/DVD burning software is unable to determine the Optimum Power Calibration rate (a small pre-burn test to determine optimal laser power for writing), resulting a disk burn failure. There is no easy way to pinpoint the exact reason, so try all the possible fixes from top to bottom (easy to hard) and see what works:
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To get started, you need to download and install Mojo on your computer (it’s fully ready to go on Macs, and currently in beta for Windows). The first time you run Mojo, you’ll be asked to create an account. Do that, then you’ll see the Mojo friends window, which is much like a buddy window on an instant messenger client. Granted, you won’t have any buddies in this window to begin with (unless it’s also been installed by another computer on your local network), but don’t worry, you will.
Next, let’s say your friend downloads and installs Mojo as well. They give you their user name, you hit the little plus (+) sign to add them as a buddy, and they’re sent an approval request. They approve you, and voilà—you now have access to every song in their iTunes library. So what now?