HTML5 defines subtitles as a \"transcription or translation of the dialogue when sound is available but not understood\" by the viewer (for example, dialogue in a foreign language) and captions as a \"transcription or translation of the dialogue, sound effects, relevant musical cues, and other relevant audio information when sound is unavailable or not clearly audible\" (for example, when audio is muted or the viewer is deaf or hard of hearing).
Why can I watch HD channels but not standard-definition channels?Some older HDTVs will not display a standard definition signal when it comes through high-definition video inputs such as component-video inputs.Alternatively, some HD TVs cannot display anything above 720p while the default resolution on your cable box is 1080i. In order to fix this, please try these instructions:
I would argue that DVD has subtitles and not captions, if we use your definition. DVD encodes the subtitles as graphics instead of text, hence the chunky lettering when ripping to modern archival systems.