[89699] in North American Network Operators' Group
Re: AT&T: 15 Mbps Internet connections "irrelevant"
daemon@ATHENA.MIT.EDU (Marshall Eubanks)
Sat Apr 1 16:05:26 2006
In-Reply-To: <20060401205834.GK7083@virtual.bogons.net>
Cc: "Edward B. DREGER" <eddy+public+spam@noc.everquick.net>,
nanog@nanog.org
From: Marshall Eubanks <tme@multicasttech.com>
Date: Sat, 1 Apr 2006 16:05:05 -0500
To: Simon Lockhart <simon@slimey.org>
Errors-To: owner-nanog@merit.edu
I archive NTSC video in MPEG-2 at roughly 30 Mbps.
That way, there are no worries about future codecs being too good for
the archives.
Regards
Marshall
On Apr 1, 2006, at 3:58 PM, Simon Lockhart wrote:
>
> On Sat Apr 01, 2006 at 08:43:54PM +0000, Edward B. DREGER wrote:
>> I'm curious how program content is currently stored. (Note that I'm
>> totally ignoring live broadcast.) If MPEG-2, I'd guess conversion to
>> MPEG-4 might produce less-than-desirable image quality.
>
> Whilst MPEG-2 for broadcast purposes will be in the 3-5Mbps range,
> MPEG-2
> for archival/storage will be at a significantly higher bitrate. If
> you're
> storing at high bitrate MPEG-2, the transcoding to MPEG-4 will have
> much
> better results than if you transcoded from broadcast quality MPEG-2.
>
> Simon
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