Originally Posted by Krobar
How's the MKV support with these new players?
Is MPEG2, VC1 and DTS HDMA supported in MKVs?
Regretfully, I don't have many MKV files to test myself so I cannot offer information based on actual experience here. That having been said, the manual for my player (BD670) does not list any lossless audio codecs (DTS-HD Master Audio, Dolby TrueHD or PCM) as a supported format for USB, disc or DLNA playback. It *does* list "VC-1 SM (WMV3)" as a supported video codec for disc, USB and DLNA playback. Based on the info in the manual, I would expect that these players will play back MKV files with MPEG2 or VC1 video and AC-3, MP3 or AAC audio but would not expect them to play back any lossless audio format (again, I haven't tested to confirm).
I recall reports from users of the last generation of LG players (BD5x0) which led me to believe that that the lossless audio formats were not supported in MKVs or any other container for streaming, USB or hard drive playback on those players. I have found that my BD570 will not play back .m2ts files with DTS-HD Master Audio or Dolby TrueHD, even though it will play similar files with AC-3 audio (the BD670 also wouldn't play those files - even the .m2ts 1080P files with AC-3. It should be noted that .m2ts is not listed by LG as a supported format in the manual for either player).
Obviously, the players have to be equipped to play all of these video and audio codecs to play back Blu-Ray discs, so these seem to be intentionally imposed restrictions. In general, LG seems to be trying to walk a fine line of offering greater media compatibility than the most other big name brands, while not completely opening it up to the point of allowing for easy playback of media copied directly from DVDs or Blu-Rays. There may be some sort of industry regulations designed to prevent piracy that are causing them to implement these restrictions. It is my understanding that the BD5x0 players at one point allowed the playback of .VOB files copied from DVDs, but that was disabled in a firmware update in June of last year. Users on this form reported that LG Support told them that this change was made due to "copyright restrictions."
Bottom line: even if the players *will* play back MKV files with DTS-HD MA now (which I don't think they will), I wouldn't think it safe to assume that that functionality would remain in place with future firmware updates.