{
  "comments": {
    "new": "ISBN: 1-57629-048-4"
  },
  "error_count": {
    "new": "1"
  },
  "ring_codes": {
    "new": "IFPI 5068\nPSRM-005660\t2 IFPI L330 A02 IFPI 5099",
    "old": "PSRM-005660 IFPI 5068"
  }
}