{
  "comments": {
    "new": "Volume Label: Crystal Key CD 2\n\nISBN: 1-896925-74-X\n\nPC/Mac Hybrid\n\n-12 offset disc: No MCN",
    "old": "PC/Mac Hybrid\n\nISBN: 1-896925-74-X\n\n-12 offset disc has no MCN"
  },
  "ring_codes": {
    "new": "DUPLIUM\t10-58123- LJ21 IFPI V505\nDUPLIUM\t8379-\t-V500 LJ22 IFPI V501\nDUPLIUM\t8379- LJ21 IFPI V505",
    "old": "DUPLIUM\t10-58123- LJ21 IFPI V505\nDUPLIUM\t8379-\t-V500 LJ22 IFPI V501"
  }
}