Thannks for all your wonderful advice. I wanted to stick with my two-channel audio system (Classe integrated, Thiel 2.3, and Arcam CDP). But when I find some interesting DVD softwares, such as opera and classical live recording, I decide to change CDP to DVDP. But my time is focused on just listening CDs (80 %) and watching DVD (20%). I donot have a plan to go 5 or 6 channle yet. So, the most important consideration for DVDP is good sound quality of CDs (2 channel). I am not sure which new audio format (SACD and DVDA) will be a winner. Thus, I wait and see.