BIB-344

[
  {
    "344": {
      "ind1": " ",
      "ind2": " ",
      "subfields": [
        {
          "a": "digital"
        },
        {
          "2": "rdatr"
        }
      ]
    }
  },
  {
    "344": {
      "ind1": " ",
      "ind2": " ",
      "subfields": [
        {
          "b": "optical"
        },
        {
          "2": "rdarm"
        }
      ]
    }
  },
  {
    "344": {
      "ind1": " ",
      "ind2": " ",
      "subfields": [
        {
          "g": "surround"
        },
        {
          "2": "rdacpc"
        }
      ]
    }
  },
  {
    "344": {
      "ind1": " ",
      "ind2": " ",
      "subfields": [
        {
          "h": "Dolby Digital 5.1"
        }
      ]
    }
  }
]

{
  "mainEntity": {
    "soundCharacteristic": [
      {
        "@type": "RecordingMethod",
        "label": "digital"
      },
      {
        "@type": "SoundCharacteristic",
        "source": {
          "@type": "Source",
          "code": "rdatr"
        }
      }
    ],
    "hasPart": [
      {
        "@type": "Instance",
        "soundCharacteristic": [
          {
            "@type": "RecordingMedium",
            "label": "optical"
          },
          {
            "@type": "SoundCharacteristic",
            "source": {
              "@type": "Source",
              "code": "rdarm"
            }
          }
        ]
      },
      {
        "@type": "Instance",
        "soundCharacteristic": [
          {
            "@type": "PlaybackChannels",
            "label": "surround"
          },
          {
            "@type": "SoundCharacteristic",
            "source": {
              "@type": "Source",
              "code": "rdacpc"
            }
          }
        ]
      },
      {
        "@type": "Instance",
        "soundCharacteristic": [
          {
            "@type": "PlaybackCharacteristic",
            "label": "Dolby Digital 5.1"
          }
        ]
      }
    ]
  }
}