Western Digital TV Live User Manual page 143

Aspect Ratio
Use this menu to select the way videos are displayed. Options include:
Normal (4:3)
Widescreen (16:9)
The media player's default setting is Widescreen . Make sure your TV can support
widescreen resolution, or this default setting can result in a distorted video display.
Audio Output
Use this menu to select the audio output mode.
Options include:
Stereo - Recommended if you are using a 2- or 4-speaker entertainment unit.
WD TV Live HD Media Player
SETTINGS AND ADVANCED FEATURES – 139
User Manual