Dear itd friends merey pas hp ka dvd writer hai kuch dinon se cd write ni kr raha hai power calibration ka error de deta hai main ne maket se repair bhi krwaya hai lakin problem solve ni howa hai keya koi friend bata sakta hai k ye error kuin aa raha hai .main nero burner6.6.0 use kr raha hn or 40x pe write krta hn.