I am sorry that I didnt quite understand what you are trying to say. The board for live is http://community.wdc.com/t5/General-Discussions/bd-p/tv_live and the link you gave(http://community.wdc.com/t5/WD-TV-HD/bd-p/tv_hd) is for WD TV HD only and not for live. Am I missing something here? Sorry if it is so.
Please ignore RichUK’s suggestion Haresh, he has mis-advised you, your post is in
Western Digital Community • WD TV & DVR Expander • WD TV HD • DTS 5.1 Support in WD TV Media Player
Exactly where it should be (unless you’re enquiring about the WD TV Live?)
I personally own the WD TV HD (Gen 2) and my advice to you would be to definitely read the negative posts in this “community” as well as the more positive ones. You’ll notice a very re-occuring theme here that WD gives [deleted] about it’s customers or it’s seriously lacking hardware. Come on, the latest firmware release for the WD TV HD 3rd December 2009?!! ( http://www.wdc.com/wdproducts/updates/?family=wdfwdtv_hd) They have done nothing to regard their customers requests and suggestions (even the most minor issues) and they clearly don’t give a [deleted] that their inferior product needs it’s firmware updating. I would highly recommend going onto Amazon and doing a search for “media player” and reading the customers reviews (good and bad) before spending your money with this company. DO NOT purchase the Asus O!Play Air! I purchased one and the sound chip blew on me within 4 hours of me turning it on for the first time! Absolute plasticised turd! Easily the worst product I have ever wasted my money on (I got it refunded )
In answer to your question The WD TV HD is supposed to support DTS 5.1, but I think what you’ll find on this community is that it is very unstable and unreliable. I myself try to watch backup copies of my original (purchased) Blu-rays and from my experience the sound is often problematic (keeps cutting in and out) to the point where the movie is completely unwatchable (would actually sound less annoying on mute!) The only time I get consistant sound on a Blu-ray backup is when the sound is played in AC3.
Hope this helps and good luck with your purchase.