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hi, i just bought a dvr212, and burning using nero's create data disc shows that the dvr212 seems to be cutting in and out, it produces spikes every 5mm on the graph, i also had this prob with my dvra10xl, is it a flaw in the pioneer's burning? or is it just something like nero is reporting incorrectly? it reports that the buffer is always above 95% on both drives

That sounds like the drive's Optimum Power Calibration (OPC). It monitors the writing process and adjust the laser at certain points. With most drives, this will create a dip in the graph. The number of dips and size of the dip varies from drive to drive.

so it would check and change it, say, every 400mb? this would explain why the spikes are evenly spaced

so this means the discs are 100% fine?

Hobs wrote:so it would check and change it, say, every 400mb? this would explain why the spikes are evenly spaced

to this means the discs are 100% fine?

I don't remember how Pioneer's OPC works but with some drives, it is pretty evenly spaced. If you post a screenshot, I can give you a better idea.

Even with OPC, the writing quality can still be bad with some media. If you have a drive that can do write quality testing, you can check the error rates. Otherwise, just do a transfer rate test. If the graph is fairly smooth, there probably aren't any major issues.

quality seems fine, and spikes dont match with spikes on the quality graph, thanks for the speedy replies, just wanted to know why i had these spikes