Quality scanning

Is there a Samsung drive that is a good choice for quality scanning?

It really depends.

My SH-S182D gave me totally unreliable results, but Ive read that the S20x burners are quite reliable.

If you’re after “quality scanning”, I think it’s best to get a BenQ or LiteON drive instead. I’m not saying that all Sammies are less reliable in scanning; TSST drives with Mediatek chipsets are also capable.