[QUOTE=RIA77;2630565]I know that there is difference between drives,but of course there should be some quality standards.
I mean that every disc I tried,there is maximum 93% quality scan.
I tried to burned faster,and to burn with different discs,just there is no better scans than 93%…
Right now,I tried to burn with 12x but ImgBurn was slower (Average Write Rate: 12 KB/s (8.7x) - Maximum Write Rate: 17 KB/s (12.9x)
On my previous Optiarc drives,I haven’t so much problems like with this drive. I used only one speed of burning,and only one disc (Verbatim dvd+r (MCC004))
Thank you for your answers,but I just got a bad drive,I think.
Drive 7280s … 1.01 FW
Verbatim disc DVD+R (MCC 004)
Burned at 12x[/QUOTE]
Now you’ve switched back to burning an MCC 004. Comparing it with the 4x burn you posted before, this 12x burn is BETTER. You are very hung up on the Quality Score. It is 93% because you have a single vertical PIF that is 3. A single thin vertical line like this is most likely inconsequential to the quality or playability or security of the data. It also appeared in the previous scan in the same spot and probably is due to a disc imperfection than a burner problem.
To reiterate, the 12x burn scan is an improvement over the 4x burn scan, the 93% is because of a PIF that reached to 3 on the graph, the PIF of 3 is repeating in the same spot so it’s probably the disks, and both disks look good. Lastly, unless your earlier drives contained the exact same chip and laser then scans are not directly comparable between different drive models.
I am glad you are trying different speeds. Try 8x and 16x with the Verbatim MCC 004 disks to complete the testing. Then you’ll know what speed is optimal for those spindle of disks. The next spindle of disks, even if they are the same MID code, need to be retested to make sure you are selecting the best speed.
Imgburn is an excellent burning application. Your burner did reach the maximum burn rate you set it at - 12x. Different drives speed up at different rates based on the write strategy in the firmware and the hardware design. It may seem slower, which could be in part what I just said as well as imperfections on the disk that result in the application slowing the burn speed, but I don’t see anything you’ve shown to be out of the ordinary. A Transfer Rate Test may show an issue that would relate to a slower than expected burn.
I encourage you to try different types of high quality disks in the burner. At this point, I cannot say that your burner is not functioning as expected. It could be it doesn’t like the disks you have fed it or that something else is going on, for instance you need to DEFRAG your hard drive, not run other applications while burning, or need to free up at least twice as much space on the hard drive as the amount of data being burned.
It sounds like you have already made your mind up. If that is the case, get a Lite-On such as the iHAS524 (Newegg $26 total cost), which you saw was used for the scans I just posted. Great burner and it does Jitter scans as well (using a modified Nero CD/DVD Speed). If that doesn’t produce great burn scans with high quality disks then the problem is your computer.