The source of the video. BluRay offers the highest quality, while WebRip or Web-DL means it was captured from a streaming service like Netflix, Prime Video, or Hotstar.
The Global Powerhouse: An Analysis of the Bollywood Film Index index of movies bollywood
A: Most of those are cached links. The server administrator likely fixed the directory browsing vulnerability months or years ago, but Google hasn't removed the old index. The source of the video