HDCP Compliance

[ata786rz]

I am trying to understand HDCP compliance. As I read it is mainly for content protection of both video and audio content on Blueray and HD-DVD. What I am concerned is how can I get a playback on my LCD TV using HDMI by using DVI output of my VGA card with embedded audio. As I understand most latest ATI and nVidia VGA cards are HDCP compliant. What about audio? Latest nVidia card take SPDIF input to embedded audio but is that HDCP compliant?

 

[AKM880]

ATI cards have a built in sound chip I think, and the Nvidia series of cards requires a SPDIF signal from the motherboard. VGA is not HDCP complaint but DVI & HDMI is I'm pretty sure.