set -e
origdir="./original"
shopt -s extglob nullglob

if [ ! -d "$origdir" ]; then
  echo "Creating $origdir directory."
  mkdir "$origdir"
fi

for vid in *.mkv; do
  noext="${vid%.mkv}"
  ffmpeg -i "$vid" -map 0:v -map 0:a -c:v copy -c:a pcm_s16le "${noext// /_}.mov"
  mv "$vid" "$origdir"
done