{
  "comments": {
    "new": "ISBN: 1-57629-033-6"
  },
  "error_count": {
    "new": "1"
  },
  "ring_codes": {
    "new": "IFPI 5087\nPSRM-002910\t1 IFPI L330 A05 IFPI 509A",
    "old": "IFPI 5087"
  }
}