Audio out of sync and some suggestions

Hello WD I use WD TV Live with 1.02.21 firmware and with some MP4 files the audio is out of sync.I suggest that in future firmware you include various fonts and font color to choose think it would be great to have something like that. Is it safe to upgrade my firmware to 1.03 over the net and over the USB I’m afraid that I will brick my unit?

Internet update appears to be the safest, considering what happened with some people’s Plusses when doing the USB upgrade…