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List:       ms-wmtalk
Subject:    Re: New file sharing technology...
From:       Lee Atkinson <leeatkinson.lists () GMAIL ! COM>
Date:       2005-06-19 16:53:00
Message-ID: 42b5a2f2.00332f4c.277b.ffffbbe6 () mx ! gmail ! com
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The key difference is that, to get content onto the system, it needs to be
signed, to deter it being shared illegally.

Now, if they can then extend this to support MMS/RTSP....

Lee Atkinson
Makeni Ltd
http://www.makeni.com
 
 
-----Original Message-----
From: WMTalk [mailto:WMTalk@DISCUSS.MICROSOFT.COM] On Behalf Of Kon Wilms
Sent: 18 June 2005 00:54
To: WMTalk@DISCUSS.MICROSOFT.COM
Subject: Re: New file sharing technology...

It has its tradeoffs and for a network that has no latency it can be a
disadvantage since it increases the size of the file and adds
pre-processing and post-pocessing dependencies on the system.

It doesn't 'sound' like bittorrent, it *is* bittorrent, combined with
software-based block erasure correction coding. More info:

http://research.microsoft.com/~padmanab/papers/msr-tr-2005-03.pdf

Cheers
Kon

On Fri, 2005-06-17 at 19:37 -0400, Chris Parsons wrote:
> Basically sounds like they've taken the parity concept from PAR 2.0
> and merged it with BitTorrent.  You still have to download as much
> data as you would have, but more data blocks will be available which
> should solve the "last-bit" syndrom.  Downside is it can take serveral
> minutes (depending on filesize) to recreate the missing blocks using
> the parity techniques.
> 
> Will be interesting to see what kind of content they have in mind.  It
> would be "cheap" distribution for things like movie trailers,
> freeware, trial-ware.
> 
> -Chris
> 
> 
> On 6/17/05, Nicholas Bedworth <Nicholas.Bedworth@digitaldirect.com> wrote:
> > 
> > 
> > o Microsoft Developing "Avalanche" File-Sharing Technology 
> > 
> > Cambridge, England -- Microsoft has developed file-sharing technology
> > similar to the BitTorrent peer-to-peer network -- which breaks large
files
> > into small bits that are then stored on many computers that can more
> > speedily transmit them to downloaders -- at its computer science
research
> > lab in Cambridge, England. Microsoft said the technology, called
> > "Avalanche," solves a BitTorrent flaw that leaves users waiting for the
less
> > prominent last bits of a file, by encoding information in each bit on
the
> > whole file -- meaning users won't have to download every bit in order to
> > reconstruct the entire file. The company said piracy concerns are
addressed
> > because Avalanche will only distribute files authorized by the
publisher.
> > Microsoft is currently testing Avalanche as a means of distributing
files to
> > several thousand of its software beta testers, and said the technology
may
> > be introduced in the U.K. next year.
> > http://www.research.microsoft.com/~pablo/papers/nc_contentdist.pdf
> > http://www.infoworld.com/article/05/06/16/HNmsbittorrent_1.html
> > http://www.theregister.co.uk/2005/06/16/filesharing_microsoft

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