Read / Write quality of Lite-On combo drives?

How is the read / write quality of Lite-On combo drives such as the 5232K and 48161 compared to stand alone CDRW and DVDROM drives?

I would be particularly interested in DVD ripping ability from pressed DVDs and burned DVDRs.

Very good.

If you use the C0deguys firmware you can rip burnt DVD’s @ up to 16x as long as the burn quailty is good.