| Possible Cause | Solution | |----------------|-----------| | Corrupted subtitle header | Remux with mkvmerge | | Wrong framerate (e.g., 23.976 vs 24 fps) | Convert using -fps flag | | Muxing timestamp offset | Use --sync in mkvmerge | | Typo in player or script | Search for 00:02:00.002 directly |

That error often means the subtitle timestamps are wrong by +00:02:00.002 . To fix:

ffmpeg -i sone385.mkv Look for a line like Stream #0:2: eng: Subtitle (or und for undetermined).

ffmpeg -i sone385.mkv -map 0:s:0 subs.srt If the subtitles are in a graphic format (HDMV PGS), you must first convert to SRT using OCR (see Method 3).