{
 "id": "daisy-talking-book-navigation-control-file-3",
 "name": "Daisy Talking Book Navigation Control File",
 "category": "audio",
 "identifiers": {
  "extensions": [
   "ncx"
  ],
  "puid": [
   "fmt/2033"
  ],
  "wikidata": [
   "Q133258216"
  ],
  "signatures": [
   {
    "name": "Daisy Talking Book Navigation Control File v.3",
    "sequences": [
     {
      "position": "bof",
      "offset": 0,
      "max_offset": 3,
      "pattern": "3c3f786d6c2076657273696f6e3d(22|27)312e30(22|27){0-256}3c6e6378"
     },
     {
      "position": "eof",
      "offset": 0,
      "max_offset": 16,
      "pattern": "3c2f6e63783e"
     }
    ]
   }
  ],
  "priority_over": [
   "fmt/101"
  ]
 },
 "status": "readable",
 "summary": "DAISY (Digital Accessible Information System) is a type of digital book format originally conceived in 1988 as a way of creating talking books for the visually impaired. Books are actually a package of interoperable files. The ncx file is the first file accessed as it lays out the navigation for the whole Daisy Talking Book.",
 "tools": [
  {
   "name": "Thorium Reader",
   "url": "https://www.edrlab.org/software/thorium-reader/",
   "reads": true,
   "writes": false,
   "license": "3-clause BSD License",
   "open_source": true
  }
 ],
 "projects": [
  {
   "name": "PRONOM fmt/2033",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/2033",
   "kind": "format-doc"
  },
  {
   "name": "Wikidata Q133258216",
   "url": "https://www.wikidata.org/wiki/Q133258216",
   "kind": "wiki"
  }
 ],
 "provenance": {
  "sources": [
   "pronom",
   "wikidata"
  ]
 },
 "updated": "2026-10-20",
 "version": "3",
 "aliases": [],
 "structure": [],
 "parsers": [],
 "conversions": [],
 "samples": [],
 "claims": [],
 "verification": []
}