pioneer and cd/dvd speed

[Hobs]

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

[Ian]

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.

[Hobs]

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?

[Ian]

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.

[Hobs]

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