{
  "comments": {
    "new": "Volume Label: ISPY_School\n\nISBN: 0-439-21593-5\n\nPC/Mac Hybrid",
    "old": "ISBN: 0-439-21593-5\n\nPC/Mac Hybrid"
  },
  "ring_codes": {
    "new": "9-21593-5\t+ +\tCE81901 IFPI L028 A02 IFPI 10J5\nCDR9813476\t+ + EA74301 IFPI LB41 A04 IFPI 1018",
    "old": "9-21593-5\t+ +\tCE81901 IFPI L028 A02 IFPI 10J5"
  },
  "serial": {
    "new": "P/N CDR 9-21593-5, P/N: CDR 9-81347-6",
    "old": "P/N CDR 9-21593-5"
  }
}