Ok my burner is: The 1one,the 2 i dont know where it came from...i only have 1 dvd writer...But nvm. I read many articles about the problem that ocured by me: I have updated the firmware.I use TRAXDATA blank dvd,i used them before without no problem,then sudenly the calibration problem. I read something about ASPI,this is how it looks by me: Nero ASPI Is the problem in ASPI? Im using NERO ULTRA EDITION 18.104.22.168 Does som1 has any sugestions what to do(except reinstall my system) ? I have the log if needed... Do i need to give more information about the problem ...??