I was asked by one of the staff members at the school I work out how to convert MP4 files to AVI. The staff member needed a quick, simple and free way of doing this so that the files could be imported into Windows Movie Maker. A quick Google search and I came across a nice little program called MP4Cam2AVI.
MP4Cam2AVI allows you to convert and/or join MP4 or MOV files to AVI in four easy steps:
- Browse to the location of the video file/s you wish to convert.
- Select the video file/s from the listing.
- Select the appropriate action to perform on the video/s (Join or Batch Convert).
- Select the Output directory and start the conversion.
The resulting video file/s can now be imported into Windows Movie Maker.
Required (FREE) Software:
1. Start 
from the Start Menu (Start -> All Programs -> MobaPhoto).
2. Once MobaPhoto has loaded, select Batch photo resizer from the displayed menu.
3. Use the file browser to browse for and add the images you would like to convert. You can add entire folders or individual images to the list:
Adding folder/s:
- Select the folder/s that contains the images that you would like to convert.
- Click the
button to add all the images in the selected folder/s to the list.
Adding image/s:
- Select the image/s that you would like to convert.
- Click the button to add the image/s to the list.
4. Once you have added all the required images to the list, click the 
button.
5. Select Optimzed settings for uploading online from the drop down list.
6. Select or create a folder for the converted images to be saved to and click .
7. The files will now be converted and saved into the specified folder.
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