Splitting / Managing Data whilst retaining subtitles

vidcutter
mkvtoolnix


cd BuildArea
git clone https://github.com/ozmartian/vidcutter.git
cd vidcutter

sudo apt-get install python3-setuptools python3-dev libmpv-dev python3-opengl build-essential
# python3 setup.py --help
# python3 setup.py build
sudo python3 setup.py install