{
  "comments": {
    "new": "Volume Label: RRT3_JEWEL_CASE"
  },
  "legacy": {
    "write_offset": {
      "new": "-12"
    }
  },
  "ring_codes": {
    "new": "219471RE R3N E IFPI L250 11 IFPI 4121, IFPI 4163",
    "old": "219471RE R3N E IFPI L250 11 IFPI 4163"
  }
}