I have a Lite-On iHAS324 for reading/scanning and a Sony Optiarc AD-7240S for burning.
I've used TDK 8x DL, Intact 8x DL (cheap brand), and Ritek 8x DL, and it intermittently gives me "power calibration errors" on dual-layer burns only.
I'll burn a half-dozen DL fine, and then the next few are all "power calibration errors".
Next time I use my computer for burning, it's the same story, some DL will burn fine, then the next few are coasters.
I have flashed the drive to latest firmware 1.03.
This happens with CloneCD, UltraISO, and Nero Express.
It always happens at about half-way, approx 40-60% through the copy process.
I have Windows 7 x64 Ultimate installed.
My power supply is a Thermaltake ToughPower 1200W W0133.
Any help will be greatly appreciated, if nothing fixes it, I'll try to pursue an RMA on this drive.
Thanks in advance.