"Multi-Subtitles." This means the file contains subtitle tracks for multiple languages.
This filename follows the standard naming convention for digital media releases. Release Breakdown $ex.L!fe.$02.720p.W3B-DL.HIN-3NG.x264.M$ubs-K@t...
The video compression codec used (H.264/MPEG-4 AVC), which is the standard for most digital video today. "Multi-Subtitles