Recording HDMI signals

[VANG]

I would like to build a media center pc capable of recording HDMI signals coming from my Comcast DVR. I believe that the HDMI cable carries bidirectional information, however will HDMI video cards or Motherboards provide signal capture?
My main purpose is to get a bigger storage system as the COMCAST DVR is pitifully inadequate. What is the best way to go about this?
Thanks in advance

 

[neon neophyte]

hdmi is heavily controlled with drm. there is no way to record it, im pretty sure. i think the best that can be used for recording a HD signal is a component cable. it will still do 1080p and record it. although 720p is all that is needed for tv. (mostly, i think.)

something like this would do: http://www.hauppauge.com/site/products/data_hdpvr.html

there are lots of recorders tho, with various settings and options. best start your google quest now.

 

[Kill@dor]

with HDMI 1.3? That will record better?

 

[specialk90]

For bigger storage, you can easily add external drives to the DVR. Best Buy sells them for ridiculous prices but you can find them for much less online.