-----Original Message-----
From: owner-nanog@xxxxxxxxx [mailto:owner-nanog@xxxxxxxxx] On
Behalf Of Marshall Eubanks
Sent: Saturday, January 06, 2007 7:45 AM
To: colm@xxxxxxxxxx
Cc: Andrew Odlyzko; nanog@xxxxxxxxx
Subject: Re: Network end users to pull down 2 gigabytes a
day, continuously?
On Jan 6, 2007, at 10:19 AM, Colm MacCarthaigh wrote:
On Sat, Jan 06, 2007 at 09:09:19AM -0600, Andrew Odlyzko wrote:
2. The question I don't understand is, why stream?
There are other good reasons, but fundamentally; because of live
telivision.
In these days, when a terabyte disk for consumer PCs is about to be
introduced, why bother with streaming? It is so much simpler to
download (at faster than real-time rates, if possible), and play it
back.
That might be worse for download operators, because people may
download
an hour of video, and only watch 5 minutes :/
Our logs show that, for every 100 people who start to watch a
stream,
only 2 or 5 % watch over
30 minutes in one sitting, even for VOD where they presumably have
some interest in the movie up front, and
more more than 9% will watch all of VOD movie, even over multiple
viewings. This is also very consistent
with time, but I don't have any pretty plots handy. (Our cumulative
audience in 2006 was 2.74 million people, I have lots of statistics.)
So, from that standpoint, making a video file available for download
is wasting order of 90% of the bandwidth used
to download it.
Regards
Marshall
--
Colm MacCárthaigh Public Key: colm
+pgp@xxxxxxxxxx