In order to read the videos from the camera into ImageJ (aka. FIJI) it is necessary to convert them from the MPG4 codec to an older AVI codec. Doing so involves using the command line in a cmd window.

1. Create a folder where you will store your movie files.
2. On the computer desktop there should be an icon for FFMPEG, drag a copy of this file (hold the control key while dragging the icon) into the folder where your files are storred.
3. Open a command terminal by typing cmd into the search box in the Start bar.
4. Use the DOS “cd” and “dir” commands to navigate to the folder containing your movie files.
5. Enter the following command in the cmd window. “fname” is the name of the input and output file.

.\ffmpeg -i fname.mp4 -f avi -vcodec mjpeg -qscale 0 fname.avi