Hi,

This is the meta data from my original video:

;FFMETADATA1
SOURCE_TYPE=dvd
encoder=Lavf58.45.100
[CHAPTER]
TIMEBASE=1/1000000000
START=0
END=10911555556
[CHAPTER]
TIMEBASE=1/1000000000
START=10911555556
END=819225777778
[CHAPTER]
TIMEBASE=1/1000000000
START=819225777778
END=1839369955556
[CHAPTER]
TIMEBASE=1/1000000000
START=1839369955556
END=2689490133333
[CHAPTER]
TIMEBASE=1/1000000000
START=2689490133333
END=3289574977778
[CHAPTER]
TIMEBASE=1/1000000000
START=3289574977778
END=4584758088889
[CHAPTER]
TIMEBASE=1/1000000000
START=4584758088889
END=5516019688889

I've edited the file to (added chapter names):

;FFMETADATA1
SOURCE_TYPE=dvd
encoder=Lavf58.45.100
[CHAPTER]
TIMEBASE=1/1000000000
START=0
END=10911555556
[CHAPTER]
TIMEBASE=1/1000000000
START=10911555556
END=819225777778
title=1 - Intro
[CHAPTER]
TIMEBASE=1/1000000000
START=819225777778
END=1839369955556
title=2 - Restaurant
[CHAPTER]
TIMEBASE=1/1000000000
START=1839369955556
END=2689490133333
title=3 - At home
[.....]

After importing it to the video, with

ffmpeg -i INPUT.mkv -i INPUT.meta -map_metadata 1 -c copy -movflags +faststart 
OUTPUT.mkv

, ... I still don't see the named chapters.

How to correctly add chapter names?

Here the ffprobe output:

$ ffprobe OUTPUT.mkv
ffprobe version 4.3.1-static https://johnvansickle.com/ffmpeg/ Copyright (c) 
2007-2020 the FFmpeg developers
  built with gcc 8 (Debian 8.3.0-6)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug 
--disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc 
--enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp 
--enable-libgme --enable-gray --enable-libaom --enable-libfribidi 
--enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame 
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg 
--enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt 
--enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab 
--enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 
--enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid 
--enable-libzvbi --enable-libzimg
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
Input #0, matroska,webm, from 'OUTPUT.mkv':
  Metadata:
    SOURCE_TYPE     : dvd
    ENCODER         : Lavf58.45.100
  Duration: 01:31:56.13, start: 0.000000, bitrate: 3011 kb/s
    Chapter #0:0: start 0.000000, end 10.911556
    Chapter #0:1: start 10.911556, end 819.225778
    Chapter #0:2: start 819.225778, end 1839.369956
    Chapter #0:3: start 1839.369956, end 2689.490133
    Chapter #0:4: start 2689.490133, end 3289.574978
    Chapter #0:5: start 3289.574978, end 4584.758089
    Chapter #0:6: start 4584.758089, end 5516.019689
    Stream #0:0: Video: h264 (High), yuv420p(progressive), 720x576 [SAR 16:15 
DAR 4:3], 25 fps, 25 tbr, 1k tbn, 50 tbc (default)
    Metadata:
      ENCODER         : Lavc58.18.100 libx264
      DURATION        : 01:31:56.130000000
    Stream #0:1(deu): Audio: vorbis, 48000 Hz, stereo, fltp (default)
    Metadata:
      LANGUAGE-ISO639_2: deu
      LANGUAGE-SIMPLE : Deutsch
      LANGUAGE-DESCRIPTION: Deutsch
      ENCODER         : Lavc58.18.100 libvorbis
      DURATION        : 01:31:56.130000000

-Ulf

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