Summary
MDP-100/120 features
on-board S/PDIF digital coax (and Toslink if DVI daughter card is
used). Sound can be configured to output from this S/PDIF or
from a sound card using either Digital or Analog output (depending on
your configuration in Windows). Using a sound card in the system
will route all sounds including DTV broadcasts and Windows sound from
the same connection.
S/PDIF output via the
on-board S/PDIF and DVI daughtercard Toslink:
Configuration window
shown below is located in the "AV Setup" section of the
Config Panel, which can be accessed by right clicking on the MyHD TV
window.

The basic configuration on
the MyHD MDP-100/120 is to use the on-board S/PDIF. Note that
when this connection is used, it passes only the sound from TV
broadcasts. The S/PDIF from the MyHD is not a sound card and
therefore Windows sound cannot be routed through MyHD.

S/PDIF output via
system sound card:
Note: Your sound
card must be configured in Windows (Control Panel>Sound and Audio
Devices) to output S/PDIF and be operational with other applications.
Choosing Wave will route
the sound to the system sound card. In this scenario, the audio
will be routed to digital output (S/PDIF).

Analog Stereo
(L+R) output via
system sound card:
Note: Most PC sound
cards have a single mini-plug output, which will need to be converted
to Stereo RCA jacks if connecting to a receiver.
Choosing Wave will route
the sound to the system sound card. In this scenario, the audio
will be routed to your sound card's analog output using two channels
(stereo).

Analog
Multi-channel Decoded 5.1 via system sound card:
MyHD will decode 5.1
sources to multi-channel sound cards such as the Delta 410, 1010, or
SoundBlaster Audigy. Important! The audio card must be
configured in the Windows Sound setup for 5.1 channel (analog) output.
