: These are container formats for the video and audio data.
The specific file name you provided contains "scene" tagging common in digital media distribution: : Season 1, Episode 10. The.Offer.S01E10.ITA.WEBDL.1080p.mkv.mp4
: The finale marks the culmination of Al Ruddy’s arc as a producer who risked his career and safety to protect the artistic integrity of the movie. : These are container formats for the video and audio data