I know that scans will differ from drive to drive slightly.
But I experienced now the first time that big differences testing a disc several times on the same drive.
The results differ from software to software. When I test the disc with the same software again then the results stay within the expected limits - so the difference seems to be how the software is interpreting the information which was retrieved from the drive.
drive: Plextor PX-B950UE with firmware 1.05
a) PlextUtilities 1.33
b) Opti Drive Control 1.70
c) LtnFlash 2.6.11
a) max: 12.5% avg: 11.0%
b) max: 15.4% avg: 13.1%
c) max: 14.4% avg: 12.7%
Speed: PU seems to scan only with 1x, ODC 2x, LtnFlash was scanned 4x speed but I did earlier several tests which showed that 1x, 2x and 4x don’t really differ (at least not when using LtnFlash)
a) max 256, avg 5,2
b) max 308, avg 2,5
I dont care for the different values of the spikes - but how do I get 100% difference of the average value?