My Media Player Classic Won't Play AC3 Audio

Written by alexis lawrence
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My Media Player Classic Won't Play AC3 Audio
(Jupiterimages/Polka Dot/Getty Images)

Windows Media Player Classic comes standard with a variety of built-in codecs, allowing the player to read files in most standard video and audio file formats. The player also includes the necessary codecs for playing VCDs, SVCDs and DVD discs. Media Player Classic does not, however, contain every video and audio codec for every type of file, so if your Media Player Classic won’t play files with AC3 audio, your computer is likely missing the proper codec.

Skill level:


  1. 1

    Download the AC3Filter from the AC3Filter website or Free Codecs (see Resources.) The AC3Filter integrates with any media player on your computer and allows the player to decode and play AC3 audio. As an alternative, you can also download the K-Lite Codec Pack for Windows Media Player Classic (see Resources). The K-Lite Codec Pack contains a large number of video and audio codecs, including the AC3Filter.

  2. 2

    Close any other open programs that you have open on your computer, including your web browser. Open programs slow the codec installation and can overload your system, causing the installation process to freeze.

  3. 3

    Go to the folder where the AC3Filter or the K-Lite Codec Pack downloaded on your system. If you didn’t choose a different location, the codec pack saves into the “Downloads” folder on the “Local Disk (C:)” drive of Windows systems. Once you find the downloaded file, double-click the file icon to launch the set-up.

  4. 4

    Follow the onscreen instructions to set up the codec to your computer. As you move through each screen of the codec installation wizard, you can leave the default settings in place. The one thing that you need to watch for on each screen is the “Media Player Classic” entry. Make sure “Media Player Classic” has a check mark beside it on every screen on which it appears. This ensures that the codec integrates with Media Player Classic.

  5. 5

    Click the “Install” button that appears on the final screen of the set-up. The codec, or codec pack, installs onto your system. On the final screen of the K-Lite Codec Pack set-up, check “Configure AC3Filter” before you click “Finish.” Follow the additional instructions to configure the AC3Filter for your computer.

  6. 6

    Launch Media Player Classic. Open any file with AC3 audio, and the file should play.

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