Things You'll Need
Instructions
Plug the external hard drive's USB cable into the PS3. The PS3 automatically detects the hard drive and reads the files on it.
On the PS3 main menu, go to the "Video" tab and scroll down to "USB Device." The PS3 displays the hard drive name in parentheses next to "USB Device."
Press the "Triangle" button when the USB external hard drive is highlighted and select "Display All" from the menu that pops up on the right side of the screen. The PS3 should show the file system of the hard drive.
Navigate to the video's location on the hard drive and press "X" to begin playback. The PS3 does not support all types of video files. Visit the PlayStation Knowledge Center for a complete list of supported file types.