[mythtv-users] PVR500, PCHDTV 3000, and AMD64

[Steven Adeff]

On 2/2/06, Brad Fuller <bradallenfuller at yahoo.com> wrote:
>  R. G. Newbury wrote:
>  Brad Fuller wrote:
>
>
>  R. G. Newbury wrote:
>
>
>  With the
> HD3000 card first, myth grabs one of the PVR500 tuners for LiveTV and
> that is much more likely to work.. It is LiveTV which is the bugbear of
> using the HD card.
>
>
>  you got that right.
>
>  And speaking of PVR500's and HD3000's, has anyone noticed a difference
> in file size for the same program, recorded with the PVR500 and with the
> HD3000?
>
> I grabbed a number of repeats of a one-half hour show about the Volvo
> Ocean Race, from Rogers Sportsnet.
> I got shows on analog cable channel 22 and on digital (but non-HD)
> channel 404. Same program, time-shifted.
> These programs are different sizes!
>
> I'm not at the machine, but IIRC the analog recording was 1.24 G and the
> digital recording was .89G (no transcode, no commercial cutting).
>
>
>  I would expect them to be different sizes, but not the ATSC smaller. Maybe
> it's your encoding settings.
>
>  Maybe the stream on the  ATSC channel  has less I-frames than usual --
> isn't that a practice to save bandwidth (cost).
>
>

it all depends on the encode settings for both. Digital Cable channels
are usually low bitrate, with lower than DVD resolution.

--
Steve