The "Matroska" container format, which allows for multiple audio and subtitle tracks in one file.
Since Bird Box is a Netflix Original, it is officially available to stream and download for offline viewing directly through the Netflix app . Downloading it from external sites can be risky, as those files often contain malware or adware that can harm your device. mkv files? Download Bird Box (2018) 1080p WEB x264 6CH ESubs MLSBD mkv
That specific file name looks like a copy of the 2018 Netflix film from a third-party file-sharing or "piracy" site. 1080p: High-definition resolution (1920 x 1080 pixels). The "Matroska" container format, which allows for multiple