Oh my,... i sense more components being taken into account. Btw, what is AVR?

If you want media player that plays HD audio, currently only the higher priced ones can do that, e.g the Dvico 6500A, HDX BD1, HDMAX-BD-200C (all above RM1K). You will also need an AVR with HDMI input which also supports HD audio. (Note * Just having HDMI is not enough, it must also SUPPORT HD Audio, whether Bitstream or LPCM).

Those movie files with HD Audio (TrueHD ot DTS-MA)  are normally files with  .M2TS extension.

Those with .MKV extension normally only contain downconverted Regular Dolby/DTS 5.1.

(Note:- Although the cheaper Media players can play .m2ts files, the audio will not be real HD Audio, only downgraded 5.1 sound or sometimes even no sound)

movie files with mkv extension nowadays can contain HD audios already
but none of the media players in the market can properly bitstream HD audios from mkv files
not even those high price media players if I'm not mistaken

Among cheaper media players so far only WDTV Live can play m2ts files with proper bitstreaming of TrueHD

They Can contain but they are not the norm yet, that's why I use the word "Normally".

WDTV Live may play TrueHD but what about DTS-MA. Partial function don't count as the real thing  because lots of m2ts are using DTS-MA nowadays 

Do a search on DTSHD here you'll be amazed..

At least there's a cheap media player that can play TrueHD rather than none, right?
Still can play some older m2ts titles with TrueHD
Better than those who promised initially that it can play HD audios then later claimed that got licensing issue lar, chipset limitation lar, SDK restriction lar, blah blah blah

Since mkv can contain HD audios already
it's just a matter of time it becomes a norm

well.. i have to admit that.. but most 1080p are ripped with DTSHDMA core..

All I see are files with just regular AC3 and DTS 

---

Added on March 17, 2010, 12:15 am
Like I said TS looking for info on Current Media players in market, not something that relates to future  . If he buys the Asus O!Play thinking it can play MKVs with HD Audio in future then you better answer to him in future

That's just a branch out lar, bro
merely a discussion on what mkv can contain
I'm not a fortune teller to tell him what player can play mkv files with HD audios in future

Like I said, none of the players in the market can play mkv files with HD audios currently
and there is a cheap media player that can at least play m2ts files with TrueHD
that might be an option for TS

Actually diff between HD Audio and regular 5.1 not really night and day difference especially with budget setups. So just forget HD Audio and play regular MKV with your media player. MKVs quality are actually quite good and the size can be about 4-5 times smaller than the full uncompressed BD copy. (Occasionally you can also try some m2ts if you know where to get them, but your setup can only hear regular 5.1 of course )

how about bd player is ps3.got option for audio.
PCM @ Linear.default is PCM.i heard if change to Linear,
audio come better.but,if i change to Linear,appear message.
" Some part of audio be unless " ( i forgot exactly the message )

currently,i use ht for audio with optical cable.

Actually diff between HD Audio and regular 5.1 not really night and day difference especially with budget setups. So just forget HD Audio and play regular MKV with your media player. MKVs quality are actually quite good and the size can be about 4-5 times smaller than the full uncompressed BD copy. (Occasionally you can also try some m2ts if you know where to get them, but your setup can only hear regular 5.1 of course )