{
  "legacy": {
    "write_offset": {
      "new": "-12, 0",
      "old": "-12"
    }
  },
  "ring_codes": {
    "new": "1464617 R2J\tE IFPI L239 11 IFPI 4156\n1464617 R10N\tE IFPI L250 13 IFPI 4162",
    "old": "1464617 R2J\tE IFPI L239 11 IFPI 4156"
  },
  "serial": {
    "new": "1464617, 1464630",
    "old": "1464617"
  }
}