Turn on your computer, and eject the DVD player tray. Insert the DVD, label-side up, in the DVD tray. Close the tray.
Open your preferred media player program on your computer. Most DVD players will have an associated program that automatically opens when the disc tray is closed.
Select "Play" from the command bar in the media program to play the DVD.
Turn on your DVD player. Turn on your TV. Adjust the TV to the input associated with the DVD player.
Eject the DVD player tray. Insert the DVD into the tray, label-side up. Close the tray.
Push the "Play" button on your DVD player or DVD player remote to begin playing the DVD.