Q:

How do I play an mp4 on my computer?

A:

Quick Answer

To play an mp4 file, you need the MPEG-4 codec, which is a small piece of software that allows your computer to recognize the mp4 files and play them properly regardless of the player that you choose to use. It takes a few minutes to install the software.

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Full Answer

  1. Attempt to play the mp4 file

    Double-click on the mp4 file, and let your PC use a default application to open the file. If no program opens the mp4 file, then you likely don't have an application installed that can view or edit MP4 files.

  2. Download the MPEG-4 codec

    Visit www.free-codecs.com, and download the XP Codec Pack. This collection of popular codecs works in Windows 8, Windows 7, Windows Vista and Windows XP and plays mp4 files.

  3. Install the application

    Install the MPEG-4 codec on your computer.

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