The video compression standard (codec) used to create the file.

The "release group" or name of the entity that encoded and uploaded the file. mp4: The file format (container).

This text is a commonly used for identifying specific digital media files on the internet. Rebecca: The title of the show or movie. 2021: The release year. S01E01: Short for Season 1, Episode 1.

Indicates the source was a streaming service (like Netflix or Hulu) rather than a TV broadcast or Blu-ray.