{
  "barcode": {
    "new": "0 47875 32959 1, 9 328878 003871",
    "old": "9 328878 003871"
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  "comments": {
    "new": "ISBN: 1-58416-965-6"
  },
  "edition": {
    "new": "Original, PC Essentials",
    "old": "PC Essentials"
  },
  "legacy": {
    "write_offset": {
      "new": "0"
    }
  },
  "ring_codes": {
    "new": "32959101AU (GI191A) IFPI LB22\n32959101US R1N\tE IFPI L250 01 IFPI 4121",
    "old": "32959101AU (GI191A) IFPI LB22"
  },
  "serial": {
    "new": "32959.101.US"
  }
}