Mac OS X comes equipped with a number of basic screensaver settings, but one that's missing is the option to use a movie as a screensaver. Luckily, you can get a free application to enable this functionality. It is MP4-compatible, meaning that you can use any MP4 movie as your screensaver with just a few clicks.
Step 1
Download Movie Screen Saver plugin (see Resources).
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Step 2
Double-click the "Movie Screen Saver" file when it finishes downloading. Follow the steps on screen to install the program. You will need to read and agree to a license agreement and select the hard drive to install on.
Step 3
Open Movie Screen Saver from your "Applications" folder.
Step 4
Click "Browse" and select your MP4 movie.
Step 5
Click "Open."
Step 6
Edit any settings to customize the display. You can have the file play once or on a loop or only play a certain section of the MP4 film.
Step 7
Click "Preview" to see how the MP4 screensaver looks. Move your mouse or hit any key to exit the preview.
Step 8
Click "Save" when you are done.
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