{
  "barcode": {
    "new": "6 25904 31520 5",
    "old": "625904315205"
  },
  "comments": {
    "new": "<b>ISBN</b>: 1-55345-067-1"
  },
  "legacy": {
    "write_offset": {
      "new": "-12"
    }
  },
  "ring_codes": {
    "new": "DUPLIUM\tDF1060179-LJ21 IFPI V502",
    "old": "DUPLIUM DF1060179-LJ21"
  }
}