What is the Rectification for the Power Calibrating error

[Big-G]

I am uanble to burn any cd or dvd at any speed or with any burning software and repeatedly getting the Power calibrating error .

What are the reasons for this error and what all are the remedies ?

How do I clean the lens of my dvd/cd writer .My system is 3 years old and I have never before cleaned it's lens.

How often should one clean the lens of the dvd / cd writer?

Thanks and regards

[trublu]

Lens cleaners are easily available in the market.use them to clen the lens.If it doesn't work,ur drive may be faulty