This is a filename for a video file, likely downloaded via Telegram or a torrent site.
The name of the South Korean apocalyptic horror series and its release year. 720p: The resolution (High Definition). This is a filename for a video file,
The tag for the uploader or the group that compressed the file. This is a filename for a video file,
The video codec used. It allows for high quality at a smaller file size. NF: Indicates the source was Netflix . This is a filename for a video file,
The file contains two audio tracks (typically the original Korean and a Hindi or English dub). ESub: Includes English Subtitles .
This indicates Season 1, Episodes 1 through 3 are included in this single file.
Usually means the video was "ripped" (captured) from a high-definition digital source.