All right, I know about the 1 ECC vs. 8 ECC difference and I agree that 1 ECC scanning is the right way to scan according to specs. What if anything does this have to do with scanning speed however?
Also AFAIK the LiteOn drive will sometimes skip samples during scanning, but I don't think the BenQ skips samples, so that would count in favor of the BenQ.
I have neither a LiteOn or a BenQ, but normal scans are soooo slooooooow on my Plextor PX-712A. If I had to choose a new drive just for its scanning abilities, I would choose the BenQ 1640 with the Plextor PX-716 as a close second (more expensive, much slower scanning, but is has the unique TA scanning).