{
  "comments": {
    "new": "ISBN: 1-55345-371-9"
  },
  "legacy": {
    "write_offset": {
      "new": "-12"
    }
  },
  "ring_codes": {
    "new": "ST3036740B PCO389CD1\nMfg by DUPLIUM\tDuplium\t10-69517 IFPI LM61 IFPI V503",
    "old": "ST3036740B PCO389CD1"
  },
  "serial": {
    "new": "PC38920JC"
  }
}