{
  "comments": {
    "new": "Volume Label: A National Parks Tour, Grand Can\n\nDemonstration Disc edition has a white disc label. Title on Demonstration Disc edition disc label: \"National Parks\"",
    "old": "White disc label.\n\nTitle on disc label:\n\n\"National Parks\""
  },
  "edition": {
    "new": "Original, Demonstration Disc",
    "old": "Demonstration Disc"
  },
  "ring_codes": {
    "new": "DISC MFG., INC. (A1)\tW.O.# 42411-1\t42411 IFPI 2F82",
    "old": "DISC MFG., INC. (A1)\tW.O.# 42411-1\t42411"
  },
  "serial": {
    "new": "310-690-225-2, 310690225-2",
    "old": "310-690-225-2"
  }
}