The console Mac DVD-ROM drive will play DVDs as well as audio CDs.
If the Mac does not have an external eject button, either pressing and holding the F12 button or double clicking the Eject icon on the desktop will open the CD drive. After you insert a DVD and close the door, the DVD Player application will automatically launch and present you with a Viewer Window, but the DVD will not automatically start to play. Point to the Controls menu, drop down and select Start to play the video. To play the movie in full screen mode, double click on the Viewer Screen. To return to the smaller window double click on the screen again. To return to the desktop select Quit from the File menu. 
If the DVD does not automatically play, double click on the DVD icon.
It is possible that the DVD player program can be open even if the player window and/or DVD controller are not visible. Look at the menu bar at the top of the screen after double clicking on the DVD icon. If it says DVD player at the top but you don't see the windows, click on the Window Menu and the top and click on 'Show Controller' and/or 'Show Viewer' as necessary.The Window menu can be used to make the controller disappear if you do not want it on the screen (or it will hide itself if the mouse is left still for a little while). Even with out the controller displayed, the DVD can be controlled from the Control menu on the menu bar. If the menu bar disappears in full screen mode, moving the mouse to the top of the screen should cause it to reappear.
Video but no audio? First check that the DVD Player's mute is not selected. Click on the Controls Menu and click mute. At the top of the viewer it will say 'Mute On' or 'Mute Off'. Make sure that 'Mute Off' is chosen. If that doesn't work, make sure the volume on the Mac is not turned all the way down.
Finally, select the volume control button on the touch screen and make sure the volume is not muted or turned all the way down.
