regarding the vast amount of threads on german HiFi and WDTV related forums concerning this matter, i am most likely speaking on behalf of most WDTV-Live users that are utilizing the product for watching MKV files with AC3/DD5.1 audio streams.
Due to the badly translated german language in WDTV’s OSD, i can only presume that you’re not following the respective discussions on german forums and that this circumstance is the only reason for why the issue has not been fixed for several months.
When watching source material in the above mentioned constellation (MKV h.264 + AC3 DD5.1), an asynchronism of audio and video streams will spoil the whole experience in a way which makes the actual movie unwatchable and therefore renders the WDTV-Live with its current firmware useless for me.
The issue is especially prominent with 1080p material where the offset of the audio stream is about 100-150 ms.
Oddly enough, not every MKV seems to be affected and only WDTV’s digital outs (HDMI/optical) will exhibit this malfunctional behaviour.
Most users report that switching the audio out to “stereo” would resolve the issue or at least improve it, which might be good to know but is in no way acceptable as a permanent workaround as surround sound is a preference.
Please let me know if this annoying bug is known to Western Digital employees and if a fix can be expected.
If you need a more detailed description or if i can assist giving a more convenient guide for reproducing the bug, just let me know.