Find CD information and store into *.cdr image using diskutil information. (extra command xidel is required to work.)

sample.sh

diskutil list -plist |
  xidel --data=- --extract "//*/string[.='CD_partition_scheme']/../*" |
  awk 'NR % 2 == 1 { printf "%s\t", $0; } NR % 2 == 0 { print $0; }' |
  IFS=$'\t' while read key value; do
    case "$key" in
    "DeviceIdentifier")
      DEVICE=/dev/${value}
      ;;
    "VolumeName")
      VOLNAME="${value}"
      ;;
    esac
    hdiutil create -srcdevice ${DEVICE} -format UDTO -ov "${VOLNAME}"
  done