{
  "comments": {
    "new": "ISBN: 0-7845-0667-1"
  },
  "error_count": {
    "new": "0"
  },
  "ring_codes": {
    "new": "a Allied Record Company\tB1326 CC 765407-2 R72 ARC\t*M1\tS2\na Allied Record Company\tA1767 CC 765407-2 R71 ARC *M1 S3",
    "old": "a Allied Record Company\tB1326 CC 765407-2 R72 ARC\t*M1\tS2"
  }
}