49-11 could mean into the video. Editors often mark significant points (scene changes, errors, sync offsets) with a timecode. The trailing “Min” might stand for “minute” or “marker in notation”.
: This is a standard abbreviation for "English Subtitles." This indicates that the original audio (likely Japanese or Korean) has been overlaid with English text for international viewers. DVMM-143-engsub convert02-49-11 Min
The string appears to be a specific filename or metadata tag associated with a digital video file. While it looks like technical jargon, it follows a very specific naming convention often found in online media databases. Anatomy of the Keyword 49-11 could mean into the video