Optoma EP718 User Manual page 25

Problem : The screen is outstretched when displaying 16:9 DVD.
The projector itself will automatically detect 16:9 DVD and adjust the aspect ratio by digitiza-
tion to full screen with 4:3 default setting.
If the projection display is still outstretched, you will also need to adjust the aspect ratio by
referring to the following:
4
Please select 4:3 aspect ratio type on your DVD player if you are playing a 16:9 DVD.
4
If you can not select 4:3 aspect ratio type on your DVD player, please select 4:3 On
Screen-Display(OSD) function of the projector for your display.
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