{
  "comments": {
    "new": "PC/Mac Hybrid\n\nISBN: 1-896925-74-X\n\n-12 offset disc has no MCN",
    "old": "PC/Mac Hybrid\n\nISBN: 1-896925-74-X"
  },
  "legacy": {
    "cdtext_catalog": {
      "new": "0000000000000"
    },
    "write_offset": {
      "new": "-12, 0",
      "old": "-12"
    }
  },
  "ring_codes": {
    "new": "DUPLIUM\t10-58123-LJ21 IFPI V505\nDUPLIUM\t8379-LJ22-V500 IFPI V501",
    "old": "DUPLIUM\t10-58123- LJ21 IFPI V505"
  }
}