The WD Live played well the mt2s file. After I updated to the latest firmware, it runs for a short period, then audio is gone and video is getting shaky. Not sure what goes well.

M2TS or MT2S? M2TS files should play but the follow codecs just like any other file while MT2S is not a supported container, so if you mean M2TS then post the media info to see if there’s something on the file now affecting the media player, but if it is MT2S then you’re lucky you got to play the files at all…

Sorry, it is typo mistake. It should be m2ts. It played well before, but not now anymore after firmware update. Don’t know how to fix it.