This comes up a lot so I figured I would put some of my burners to work and do some scan comparisons of the same disc scanned on different drives. The disc is a TYG01 burned at 8X on an NEC 3520 with 1.UF firmware. I pushed it to 8X so I could get some errors to work with. The first scan is done on a Liteon 832S with Kprobe at 4X. This is the standard as far as I am concerned. I know there are problems with this assumption, but this is what we have to work with and we have to start somewhere.
The second scan is done on the NEC 3520 at 8X. This is wrong for a number of reasons but a lot of people do so nonetheless, and the point of this is to show the problems when you make slight errors or try to compare different drives and software.
The last scan is done on an AOpen 1648 AAP at 4X. Scanning on a ROM drive is supposed to work if you just multiply the error reading on the PIE by either 8 or 32 or some other magic number. I cannot seem to find the magic number here and I don’t think anyone else can either.
I am sorry I couldn’t add a BenQ scan but as you may know my BenQ is spending more time at the RMA center than in my computer. I also thought I had read that the Pioneer 109 could do scanning now but it wouldn’t cooperate. I would have liked to add a scan from a Liteon 1693 so I could see if there is a difference between older and newer Liteons but Newegg has not dropped the price to $45 for me so I am out of luck.
For these scans, the only reliable thing was that the PIF s were fairly low for all.
I posted this in the drive section because, even though it has to do with media testing, it is more useful as a measure of drive variation.