Section.8.2022.pl.bdrip.x264-k83.mkv

The Matroska Video container format. This format is widely used because it can hold multiple video, audio, and subtitle tracks in a single file.

Ryan Kwanten, Dolph Lundgren, Dermot Mulroney, and Mickey Rourke. Technical Metadata Breakdown Section.8.2022.PL.BDRip.x264-K83.mkv

Based on the file naming convention, here are the technical specifications for this specific release: The Matroska Video container format