Directv HDTV DVR to iMovie import

I just got a new HDTV DVR from my DirecTV service provider. Now that I have gone to HDTV, I now have true digital ports out of the DirecTV DVR Model HR10-250. The output is HDMI and a cable is provided to get it to DVI. How can I get this DVI or HDMI signal into my computer and ultimately to iMovie and iDVD. I have looked all over for conversion boxes or PCI cards for the computer, but everywhere I look companies only offer Analog (composite or s-video) to Firewire converters that do the same as my DV Camcorder. I am looking to eliminate the Analog to digital process where the quality is degraded. If there is no such device does anyone know of a Component to Firewire device as Component analog is still better than s-video.


Before I got the HDTV I had an older Standard definition DVR from DirecTV and was able to build DVD copies of what I recorded by outputing the DVR through the s-video port into my DV camcorder. It converted the s-video to DV which I imported to iMovie for editing and then iDVD for DVD generation. It is a tedious process but it does work. The video quaility is reasonable but not as good as the orginal.