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Not likely since he's getting power calibration issues in his DVD burning application.
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Power calibration issues basically means the laser is not getting to a high enough wavelength to burn the disc. Reading a disc requires a longer (lower power) wavelength compared to burning a disc so usually a burner will fail to burn discs first then fail to read discs later on. In some cases this could actually be caused by a bad power supply but normally OS lockups or reboots will accompany a failed burn when this is the problem.
If you had bought the same brand drive twice it might be time to consider a different manufacturer.
There's nowhere I can't reach.