Microsoft's default video player, Windows Media Player, can play a DVD once a DVD video decoder plug-in has been installed. There are a number of DVD video decoder plug-ins available on the Microsoft plug-in web site, but only a few include the ability to play a DTS 5.1 audio soundtrack. To play a DTS-enabled 5.1 audio track, install a DVD video decoder plug-in that includes DTS 5.1 capabilities. The procedure is no different than downloading and installing any program from the Internet.
Launch the web browser you are using, for example, Internet Explorer or Firefox, by clicking its icon in the “Start,” “All Applications” pop-up menu.
Go to the Microsoft website that features plug-in programs for Windows Media Player (see Resources). Download a DVD video decoder that includes DTS audio capabilities, for example, the nvidia PureVideo Decoder, to the desktop (see Resources).
Double-click the DVD video decoder file once it has downloaded. Follow the menu prompts to install it into the Windows operating system. Restart the PC after the installation is completed.
Turn on the home theatre system that the PC’s audio output is attached to. Select the “Aux” input on the home theatre so that the audio being played from Windows Media Player can be heard through the speakers.
Eject the disc tray of the PC’s DVD drive. Place a DVD movie disc that has a DTS audio track onto the disc tray. Close the disc tray.
Launch the Windows Media Player by selecting it from the “Start,” “All Applications” pop-up menu. Select “Open file” from the “File” drop down menu at the top left of the program’s main screen.
Double-click the icon of the DVD movie disc in the left column of the window that appears.
Click the “Play” button at the bottom of the Windows Media Player program’s main screen. Wait for the main menu of the DVD videodisc to appear.
Click on the “Audio” or “Options” button on the main menu. Select “DTS” or “DTS-Audio” from the list of choices presented in a new screen. Click the “OK” or “Main menu” button to return to the main menu. Click the “Play” button on the main menu to start the video and audio of the movie playing.
The DVD video decoder plug-in that is downloaded must be compatible with the version of the Windows operating system that the PC is using.