{
  "comments": {
    "new": "Volume Label: XIII_CD4"
  },
  "legacy": {
    "write_offset": {
      "new": "-12"
    }
  },
  "ring_codes": {
    "new": "5002445CD4 02 @@@@ 23/10/2003 IFPI L036 IFPI 1083",
    "old": "5002445CD4 02 @@@@ 23/10/2003 IFPI L036"
  },
  "serial": {
    "new": "651062-CD4"
  }
}