Accessibility Awareness on Nostr: The difference between closed captions and open captions: Closed captions are on a ...
The difference between closed captions and open captions: Closed captions are on a separate track that can be turned on or off. Open captions are captions that are burned into the video, so that they are always showing. The viewer cannot turn them off.
https://www.w3.org/WAI/media/av/captions/#positioning-and-styling-captions
https://www.w3.org/WAI/media/av/captions/#positioning-and-styling-captions