{
  "comments": {
    "new": "Track02 and Track63 pregaps contain data sectors only.\n\nAt least 2 different discs with the same matrix (HRNB20505-4FAAT), but different offsets (-420 and -782) exist.",
    "old": "Track02 and Track63 pregaps contain data sectors only."
  },
  "ring_codes": {
    "new": "HRNB20505-4FAAT\nHRNB20505-4FACT\nHRNB20505-4FAAT",
    "old": "HRNB20505-4FAAT\nHRNB20505-4FACT"
  }
}