Regarding "useful features," this may refer to the technical aspects of the file format or specific highlights of the series itself: Series Highlights ("Useful" Narrative Features)
The first season features personal stakes, such as DI Vera Stanhope returning to a location from her past in the episode "The Crow Trap". Technical Context (HDTV.XviD) Vera.S01.HDTV.XviD
The filename suggests a specific digital distribution format common in the early 2010s (the season originally aired in 2011): Regarding "useful features," this may refer to the
Unlike high-octane American cop shows, Vera focuses on slow-burn mysteries and character-driven plots without constant car chases or shootouts. Regarding "useful features