{
 "id": "apple-disk-image",
 "name": "Apple Disk Image",
 "category": "image",
 "identifiers": {
  "extensions": [
   "dmg",
   "smi",
   "img",
   "2mg",
   "image"
  ],
  "mime": [
   "application/x-apple-diskimage"
  ],
  "puid": [
   "fmt/625",
   "fmt/1071"
  ],
  "wikidata": [
   "Q1228757"
  ],
  "magic": [
   {
    "offset": 0,
    "hex": "7801730d626260"
   }
  ],
  "uti": [
   "com.apple.disk-image"
  ],
  "signatures": [
   {
    "name": "Apple Disk Copy Image",
    "sequences": [
     {
      "position": "bof",
      "offset": 64,
      "pattern": "(00064000|000c8000|000b4000|00168000)(00002580|00004b00|00000000){8}(00|01|02|03)(02|12|22|24|96)0100"
     }
    ]
   },
   {
    "name": "Apple Disk Image",
    "sequences": [
     {
      "position": "eof",
      "offset": 500,
      "max_offset": 0,
      "pattern": "6b6f6c790000000400000200"
     }
    ]
   }
  ],
  "priority_over": [
   "x-fmt/268",
   "fmt/1740"
  ]
 },
 "status": "readable",
 "summary": "Disk Copy 4.2 (DC42) is the common name used to refer to disk images of floppy disks created by the 4.2 version of Disk Copy provided by the Mac Operating System.",
 "tools": [
  {
   "name": "Q215051",
   "url": "https://7-zip.org",
   "reads": true,
   "writes": false,
   "license": "GNU Lesser General Public License",
   "open_source": true
  }
 ],
 "projects": [
  {
   "name": "File Formats Wiki",
   "url": "http://fileformats.archiveteam.org/wiki/Apple_Disk_Image",
   "kind": "wiki"
  },
  {
   "name": "PRONOM fmt/625",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/625",
   "kind": "format-doc"
  },
  {
   "name": "PRONOM fmt/1071",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/1071",
   "kind": "format-doc"
  },
  {
   "name": "Wikidata Q1228757",
   "url": "https://www.wikidata.org/wiki/Q1228757",
   "kind": "wiki"
  }
 ],
 "provenance": {
  "sources": [
   "ffw",
   "pronom",
   "wikidata"
  ]
 },
 "updated": "2026-10-24",
 "version": "4.2",
 "aliases": [],
 "structure": [],
 "parsers": [],
 "conversions": [],
 "samples": [],
 "claims": [],
 "verification": []
}