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Windows Media Player version 12, released in 2009, has the Play To functionality, which does precisely this. See this Wikipedia Article. http://en.wikipedia.org/wiki/Windows_Media_Player.


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VLC media player has had this functionality for many, many years (very handy to do multi-room audio at parties for no cost!). See (dated 2005): http://www.videolan.org/doc/streaming-howto/en/ The page linked above demonstrates all of the three required criteria for prior art but does takes some reading to fathom. The first page I found that walks you ...


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Does this count: https://sonos.custhelp.com/app/answers/detail/a_id/126/kw/mesh It mentions a mesh network between separate Sonos devices. The date published mentions 05/13/2004, but the document has been updated in 01/07/2013. The picture of the mesh network: https://www.sonos.com/graphics/rn/FAQ126/SonosNet-wireless.PNG is dated as modified on 17 July ...


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