mkvinfo "filename.mkv"extract the subtitle track with:
mkvextract tracks "filename.mkv" 3:subs.srt
mkvinfo "filename.mkv"extract the subtitle track with:
mkvextract tracks "filename.mkv" 3:subs.srt
mkvmerge --split timecodes:00:28:00,00:34:42 'input.mkv' -o 'output.mkv'