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HD Should Be Wired, For Now
AcidAUS writes "Current wireless networking standards aren't fit for streaming high-definition (HD) content between a media centre PC and multiple extender devices, according to Intel and Microsoft." From the article: "'You've also got to remember though that wired connectivity is a lot more efficient than when you start putting it [HD content] over wireless,' said O'Shea, adding that the real-world bandwidth of 802.11g would 'probably top out around 22Mbps'. Intel's Gurgen added that in addition to efficiency differences, one must also consider other network traffic when weighing up a move to wireless. 'Remember that at that one time when you're streaming content it's probably not the only thing that's happening. You could be sending e-mails, you could be downloading some sort of update,' said Gurgen. Both O'Shea and Gurgen declined to comment on whether or not the upcoming 802.11n Wi-Fi standard would make wireless streaming of HD content throughout the home viable."
In France, but in Europe globally, transmission of HDTV is made in H.264. And it's mandatory. So Free is streaming MPEG-4 HDTV content over Wi-Fi, at something like 5 or 6 Mbps. And the quality is just... wow.