Arr.719.720p.wb.x265.yourserie.com.mkv

: Likely identifies the series or release tag (potentially a shortened version of a show title or the automated system that sourced it).

: This typically represents the Season 7, Episode 19 of a series. 720p : The video resolution (High Definition, arr.719.720p.wb.x265.yourserie.com.mkv

: Short for Web-DL or Web-Rip , meaning the source was a streaming service like Netflix, Amazon, or Hulu. : Likely identifies the series or release tag