{
  "comments": {
    "new": "Volume Label: SimCopter\n\n-22 Offset disc has no MCN\n\nR7H, R2N, R8J discs has no MCN",
    "old": "-22 Offset disc has no MCN\n\nR7H, R2N discs has no MCN"
  },
  "legacy": {
    "write_offset": {
      "new": "-22, -12, 0",
      "old": "-22, 0"
    }
  },
  "ring_codes": {
    "new": "1119307\n1119307 R1H IFPI L238 17, 18 IFPI 4121\n1119317 R7H IFPI L238 15, 110 IFPI 4121\n1641567 R2N IFPI L250 13 IFPI 4161\n1119317 R8J IFPI L239 23 IFPI 4121",
    "old": "1119307\n1119307 R1H IFPI L238 17, 18 IFPI 4121\n1119317 R7H IFPI L238 15, 110 IFPI 4121\n1641567 R2N IFPI L250 13 IFPI 4161"
  }
}