..wrote long, detailed response... lost due to no membership... went back... all input gone... so here is short version. http://www.cdrinfo.com/forum/register.asp?actkey=4m712kscn7054941174q75j10vg04550
Totally smoked the Lite-on 52x regarding ability to read dirty/scratched CDs. (test cd was over 60% unreadable)
I think this is a really big deal.
I was ready to get this drive but now, unless someone can explain why it is just as good as the LG 8520B which read the same CD and only four 0.43% unreadable.
The other criteria for me is "best" clone Cd drive characteristics which limits drives quite a bit.