{
  "comments": {
    "new": "Volume Label: SHERLOCK\n\n-22 Offset disc has no MCN",
    "old": "Volume Label: SHERLOCK"
  },
  "ring_codes": {
    "new": "DISC MFG., INC. (H3)\tW.O. 502698-2\t502698\nDISCTRONICS\t1011460\tCDROM(127561)\tC1\t100545-01",
    "old": "DISC MFG., INC. (H3)\tW.O. 502698-2\t502698"
  }
}