Old CD-ROM Plextor - INFO!

Hallo !

I wanted to ask the following information on this 2 Plextor readers that i found again between my hands:
PX-12CSI and PX-20TSI
I have already seen smoething on the plextor Web, but someone can give me some information in more on the effective quality? AUDIO type EXTRACTION more than other,but not only. I’m little Crazy on this argument (I am waiting for a Plextor Premium2 just in order to try always the maximum quality in extraction and writing) and i would want to know if MUST keep them in order to use them in something in which they work better than other new product . But they are both only readers isn’t they? Thanks to anyone want to give me any answer. Bye!