Subtitles are always compiled as a single file and may have any format (eg. That's another purpose of the subtitle - to add background info on some typical words for audience's well-understanding. Occasionally, we see some text strings in the sideways. They are widely used for movie translation (foreign languages or some informal words, e.g. They are a text based collection of all the dialogues delivered by all presenting roles in a movie. These text strings are, precisely, known as video subtitles.
Have you ever noticed that there are text strings at the bottom of your TV screen while watching a movie? 10 Best Subtitle Editors You Deserve to Use in 2021
