Rym

I hope i'm not diggng up old stuff, but i want to point something out. My previous burner (NEC ND-3500) gave the same error as posted above. I looked for every possible solution but couldn't find it. It would burn single layer, random media whatever...except Dual Layer media. Then I'd get the power calibration error, and i exclusively used Verbatim 2.4x discs. Though i'm sure most people here use cheap discs and don't understand, but i only used verbs, and suddenly my drive started giving errors with these discs. In the end i just bought a new drive cause i couldnt burn my discs anymore, but the old drive still works perfectly for single layer/cd's. The reason i'm posting this is because a friend of mine is also getting these errors (i don't know what type of drive he has) and he is also using verbatims. So is there anything else which could cause the power calibration error? Hope i can get some help.