[mythtv-users] Re: recording HD content

Michael T. Dean mtdean at thirdcontact.com
Thu May 5 01:23:24 UTC 2005

Brad Templeton wrote:

>On Wed, May 04, 2005 at 11:10:01AM -0400, Joseph A. Caputo wrote:
>>Now I'm confused... are you saying that the cable co. is allowed to 
>>encrypt or downres firewire output even for 'broadcast equivalent' 
>>channels, and that only the raw QAM signal for such channels must be 
>>available in the clear?
>Dunno about down-res, but they are allowed (and expected to) use the
>DTCP (5C) protocol on the 1394 port in the cable box.   This protocol
>has the cable box talk to the receiving end and confirm that it also
>speaks DTCP, which only happens if it has pledged not to let the
>content out.
And if the device connected to the 1394 port (or any other digital port) 
is not recognized as DTCP-compliant, any broadcast-flag protected 
content output over the port *must* be down-res'ed to no higher than 480p.


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