Will it work? Maybe. Or maybe not.
Satellite and cable providers generally push out HD video that comes equipped with HDCP over HDMI.
"HDCP" = HD copy protection.
If your DirecTV satellite box outputs unencrypted HDMI video, then maybe it could be captured (recorded), and save as a video file somehow. Or in this case, pushed through an analog capturing setup.
Full specs of the Grass Valley Canopus ADVC HD50 are here:
http://www.grassvalley.com/products/advc-hd50
It supports the following output specs:
- HDV Mode-1 (720p): 1280x720/59.94p, 1280x720/50p
- HDV Mode-2 (1080i): 1440x1080/59.94i, 1440x1080/50i
- IEC61883-4 MPEG Transport Stream
Your proposed workflow is as follows:
- Satellite HDMI (digital) @ HD resolutions >
- Canopus ADVC HD50, with output @ HDV HD resolutions
- JVC D-VHS recorder .... that can accept HDV resolutions? The 720p50 is valid, maybe?
I'm not sure if this is going to work. What input specs can the JVC accept?
And again, this assumes lack of copy protection on the HDMI output. It can go both ways.