[mythtv-users] PVR250 or HD3000?

[Michael J. Lynch]

Doug Larrick wrote:

> Michael J. Lynch wrote:
>
>> Preston Crow wrote:
>>
>>> On Mon, 2004-12-20 at 14:56, Michael J. Lynch wrote:
>>>  
>>>
>>>> Other than cost, is there any reason to choose a PVR250 over a pchdtv
>>>> hd3000 since the latter can MPEG2 encode both NTSC and ATSC?
>>>>   
>>>
>>>
>>>
>>> You need to go back and do some more research, as the HD-3000 doesn't
>>> MPEG encode anything.  (ATSC is broadcast as MPEG, so no encoding is
>>> required by the recipient.)  Most HD-3000 users also use a PVR-250 card
>>> for NTSC.
>>>
>>> Check the list archives.
>>>
>>>  
>>>
>> That's not what the pcHDTV website says.  It specifically states that 
>> the card
>> MPEG2 encoding.  See the second line of paragraph 2 of the following 
>> link:
>>
>> HD-3000 at pcHDTV <http://www.pchdtv.com/hd_3000.html>
>>
>> The line I'm referencing is:
>>
>> "The card receives NTSC and ATSC Signals and converts them to
>> digital streams which are transported across the PCI bus."
>>
>> I know that ATSC is already MPEG2, does this possibly mean that
>> NTSC is converted to some digital format that is something other
>> than MPEG2?
>
>
> Yup!  Digital != MPEG2.  It's raw YUV data, not compressed.
>
> I can attest that neither the HD-2000 nor the HD-3000 contains MPEG 
> compression hardware.  For NTSC, they are simply dumb frame grabber 
> cards.
>
> -Doug
>
>------------------------------------------------------------------------
>
>_______________________________________________
>mythtv-users mailing list
>mythtv-users at mythtv.org
>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>  
>
Ah ha...so it's basically an ATSC (MPEG2) tuner and a "dumb" (BTTV style)
NTSC tuner?

It sure would be nice if it combined a MPEG2 encoder for the NTSC stuff 
along
with the ATSC tuner wouldn't it?


-- 
Michael J. Lynch

What if the hokey pokey IS what it's all about -- author unknown