The two biggest complaints since the release of the newest firmware are:
- No Dolby Digital sound (5.1) at all through network shares (works fine through a media server or local storage)
- No AVI sound at all through network shares (works fine through a media server or local storage)
I connected my laptop (the source of the video file) to my wireless router with an ethernet cable, and it solved both audio issues. Both of my WDTV SMP boxes are still connected via wifi, but connecting the source of the video file (my laptop) with an ethernet cable to the network (the router) completely eliminated both issues. I can say with certainty that the two audio problems above are related to wifi.