{
  "comments": {
    "new": "-12 offset discs have no MCN",
    "old": "IFPI LN06 disc has no MCN"
  },
  "ring_codes": {
    "new": "04-21165CD1\tCDR0103058-1 01 IFPI LN06\n0421165CD1 R1H IFPI L238 14 IFPI 4121\n0421165CD1 R2F IFPI L240 12 IFPI 4121",
    "old": "04-21165CD1\tCDR0103058-1 01 IFPI LN06\n0421165CD1 R1H IFPI L238 14 IFPI 4121"
  }
}