13742-br1080p-subs-underwraps.mp4

: This is typically a unique release number or a project identifier assigned by the group that encoded the video.

In the world of digital media, a file name acts as a detailed metadata tag. 13742-BR1080p-SUBS-UNDERWRAPS.mp4

: The resolution of the video. At 1920x1080 pixels, this is "Full HD". : This is typically a unique release number