FireCrotchBurns,
I think what Underclocked is saying is that QPS is an OEM which uses Plextor internals for their drives...so as far as quality goes, I think the QPS drives are very well built. As for the Burn-Proof...I believe Burn-Proof is Burn-Proof...it's a licensed technology from Sanyo. You will find other drive companies which have licensed "Burn-Proof" from Sanyo. Basically if a company is going to advertise their drives as having "Burn-Proof" they will conform to Sanyo's specifications...otherwise they couldn't call it "Burn-Proof". There are other technologies out there that are similar also like Ricoh's "Just Link" which is supposedly going to be superior when 24X or faster CDRW drives become available...
Nonetheless, I agree with you that the Plextor Burn-Proof drives rock but there are other drives that have Burn-Proof that rock too like the ones from TDK, Iomega, etc.