{
  "barcode": {
    "new": "6 25904 39120 9, 6 25904 39150 6",
    "old": "6 25904 39150 6"
  },
  "comments": {
    "new": "ISBN: 1-55345-383-2"
  },
  "legacy": {
    "write_offset": {
      "new": "-12, 0",
      "old": "-12"
    }
  },
  "ring_codes": {
    "new": "MADE IN USA PC0391CD3 R86EA03EE\nMfg by DUPLIUM\t10-75903 IFPI LM61 IFPI V503",
    "old": "MADE IN USA PC0391CD3 R86EA03EE"
  },
  "serial": {
    "new": "PC0391CD3"
  }
}