{
  "comments": {
    "new": "ISBN: 1-56673-255-7"
  },
  "error_count": {
    "new": "0"
  },
  "ring_codes": {
    "new": "PSRM-001040\t1 IFPI L330 IFPI 501A",
    "old": "PSRM-001040"
  }
}