Ive heard someone getting great results with an external converter going thru the digital in...but using the analog inputs, it wont happen....for pro results, get a pro card if that even exists.....maybe you need to clear up what you mean by CD quality....16 bit 44.1khz or quality of a commercial CD?
I use SB Live! Platinum. I use a Sony MDS-JB920 for A/D conversion. I think it's possible to get VERY good results in this setup, but that's more up to you than the card.