rames") in a video.
	<li>How many frames are displayed per second
		(called "Frames Per Second" or "FPS").
</ol>
These are described in more details below.
</p>

<details open><summary></summary>

<h3 id="changelength">1. &nbsp; Number of frames in a video</h3>
Everything else being equal, the more frames in a video, the longer it plays.
Doubling the number of frames will double the video's length.
<p>
To <strong>increase</strong> a video's length, do options A and/or B below.
<br>
To <strong>decrease</stro