[B]Scanning speed & Method[/B]
If your primary concern is to compare with other BenQ scans on our forums, you should use 8x (CAV) scanning speed.
This scanning speed provides a skewed view of jitter in my experience, so you might want to scan at 6x CLV or 4x CLV instead, if you want a “fair” view of jitter on a disc.
[B]8/1 ECC scanning[/B]
I haven’t played that much with 1 ECC scanning, which AFAIK can only be done at 4x CAV and only after pressing the “Advanced” button once.
IIRC the limits and quality score in CDSpeed incorrectly assume that 8 ECC scanning is performed even when you scan at 1 ECC.
[B]Advanced Disc Quality Scanning[/B]
The ADQ provides more information than the normal DQ scan, but the graphs are smaller, the view can be considered more confusing, and there are two windows you have to save, since the totals and averages are presented in a separate window at the end of a scan.