Windows Movie Maker supports various file formats such as MPEG, AVI, ASF, WMV and others. However, it does not support MP4. If you want to edit your MP4 movies using Windows Movie Maker, you will be disappointed because it does not import the files for editing. That is why MP4 codec for Windows Movie Maker is required to enable you to edit your files. The solution lies in converting the MP4 files into a format that is supported by the Windows Movie Maker and then editing the movies using that format.

Part 1. MP4 Codec for Editing MP4 Videos on Windows Movie Maker

The best MP4 codec to enable you to edit your MP4 videos is WMM is UniConverter. This tool converts video and audio files from one format to the other. It will aid in converting the MP4 files to a format that is supported by the Windows Movie Maker. Besides converting audio and video files, the converter can also be used for downloading audio and video files, editing the files and burning videos to DVD. It can also be used to convert DVDs to other formats such as AVI, MP4 and WMV. Its conversion speed is high at 90 times faster and it produces files with the original quality preserved.

Guide to Convert MP4 Videos for Windows Movie Maker with iSkysoft

Step 1. Import MP4 Files to this MP4 to WWM converter

Click "Add Files” to add MP4 video files to the MP4 to Windows Movie Maker format converter. It will be very easy through dragging and dropping method, too. In case you want to convert DVD movies and folders or ISO or IFO files, click "Load DVD". A list of added files will appear in the window of the program.

Step 2. Set output format

Choose the output format that you desire. In this case, it should be a format that can be edited using Windows Movie Maker, for example, MPEG, AVI, ASF, WMV. The program features more than 150 formats. You can also change more encode settings for your MP4 video like bitrate, frame rate, encoder, resolution, quality, etc.

Step 3. Start to Convert MP4 files to WWM supported format

Click the "Start All" button at bottom right to start the conversion. A green bar appeared in each video clip shows the progress of the conversion. When the files are converted, you may import them into the Windows Movie Maker for editing.

High Quality Video Converter, 90X Faster Speed! - UniConverter

Part 2. Recommend Another MP4 Codec Pack for Windows Movie Maker

Media Player Codec Pack

Media Player Codec Pack enables Windows Media Player to play videos on formats not previously supported such as MP4. It is compatible with Windows XP, Vista, 2003, 2008, 2000, 7, 8 and 10. It supports Windows Media Player 10, 11 and 12. The coded pack is free.

Pros:
The codec pack can be used on different versions of Windows and Windows Media Player.
Instead of installing one codec at a time, the pack provides codecs that can be used on playback of different digital media.
Cons:
Installing the pack comes with third-party toolbars that may cause changes to the computer.