[mythtv-users] Re: recording HD content
Neil
neil-on-mythtv at restricted.dyndns.org
Tue Apr 12 20:30:21 UTC 2005
Hi Brad,
Brad Templeton writes:
> On Tue, Apr 12, 2005 at 01:34:57AM -0500, Neil wrote:
>> Hi Joe,
>> Hmmm. I think, if we send out the HD stream via s-video, quality is already
>> degraded. Also, quality of s-video is just ok. Is there a way to preserve
>> it just like how we do it in Air2PC? Remember, s-video is analog. HD
>> content is digital.
>
> Not just that, s-video is NTSC. It's SDTV, or slightly less actually.
> It's not of interest to people who want HD.
>
>> I would like to know if someone is doing this kind of recording. How is the
>> picture quality? But will it really be able record the HD content if the
>> receiver has an svideo out?
>
> Receivers that put out s-video either don't put it out for HD, or they down-convert
> it to SD. Not of use.
>
> There are no capture cards for HD that don't cost studio prices (many thousands
> of dollars.) People sometimes call the pcHDTV-3000 and air2pc "capture cards"
> but they aren't. They are tuner/demodulators that let you record an already
> digitized and compressed byte-stream and nothing else.
>
>
> However, on the plus side, on my cable system (comcast bay area) they do provide
> several HD channels in the clear over QAM. Not just the locals, but also
> ESPN-HD and Discovery HD, as well as some SD digital channels (OLN, History and
> a couple of others.)
>
> However, the bad news is, it could end at any time. (the ESPN and Discovery)
>
> Other people have been able to get boxes that put the HD out firewire. Also
> great, but also could end at any time.
>
> The locals won't end (though they might drop to SD on the firewire) but the
> non-locals could go away.
Thanks for the tip Brad. I'm looking into firewire but on my other posts,
the guy told me that it may soon be encrypted too. :(
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