{
  "barcode": {
    "new": "7-47851-05401-0"
  },
  "comments": {
    "new": "ISBN: 1-57176-068-7\n\nWalnut Creek CDROM November 1994\n\nDisc title: DOOMCD",
    "old": "MCN Unverified\n\nWalnut Creek Version"
  },
  "legacy": {
    "write_offset": {
      "new": "-22"
    }
  },
  "ring_codes": {
    "new": "4063\tTechnicolor\tC1\t100994-01"
  }
}