v1rtu0s1ty
09-28-07, 02:44 PM
I have a quick question about HDFury and HDDVD or BR players since I don't own one yet.
Based from what I understood with HDFury, it decrypts the HDCP signal allowing non-HDCP compliant to display the signal. Someone here mentioned that HDDVD/BR can also output 720p/1080i. When using either of this mode, is HDCP signal still being sent or HDCP is just sent when outputting to 1080p?
Thanks again!
Neil
alan halvorson
09-28-07, 05:09 PM
All signals, including 720p and 1080i, are HDCP encrypted out of the HDMI outputs.
v1rtu0s1ty
09-28-07, 05:36 PM
All signals, including 720p and 1080i, are HDCP encrypted out of the HDMI outputs.
Got it. I did more research about some players. I saw this player (http://reviews.cnet.com/video-players-and-recorders/philips-bdp9000/4507-6463_7-31899428.html?tag=sub) and it does have Component interface. From what I know, we can only do 480i/p, 720p and 1080i on the component interface. Am I correct that the reason why people wants to let the signal out of HDMI is due to 1080p since component does not support it?
I'm now a little confuse. If I will be only watching at 720p or 1080i due to end display limitation, why do I have to choose HDMI for my output? The reason I said this is because I have already used my htpc to drive my crt via component, RGBHV and DVI all at 1080i signals. I didn't see much picture quality difference. All looks amazing.
Or maybe, I'm not aware if these players downgrades the quality when it's sent to the component out.
Thanks.
720 and 1080i are sent in full rez over component. However, if I remember correctly, there is some kind of token in the players that can downsample the image to sd or allmost sd over component, if the disc tells it to. I think no discs are using this yet though.
From wikipedia:
When using an AACS-enabled player, all components in the display chain (including the display panel) must be considered "secure". This security is enforced through the High-bandwidth Digital Content Protection (HDCP) system, available on many devices which support DVI and HDMI video connections. If any components in the display chain do not support HDCP (such as a display connected to the player through analog connections like component, composite or S-Video) and the ICT flag is enabled, the player automatically reduces the high-definition video to the resolution of 960x540 pixels before outputting it. Hence, while still higher resolution than that of a standard DVD, the resulting video signal is no longer truly high-definition.
The Image Constraint Token applies on a per disc basis, so that one movie title could have it enabled while another from a different studio could have it disabled. It impacts video only, and has no effect on audio signal quality. Discs with ICT enabled will (theoretically) have it marked on the outside of package, allowing consumers to see if the specific disc has the flag enabled.