Extract text from metadata and map files (NMD)
To convert NMD data files to another format, you need Hikvision VSPlayer or other Data software.
To convert other file formats to the "Surveillance & GIS Metadata" file type, you need software like Hikvision VSPlayer or a similar tool.
The .nmd extension is a classic example of a 'container conflict,' shared primarily between security surveillance systems and GPS navigation units, creating significant confusion for users trying to open them. Most commonly, an .nmd file acts as a sidecar metadata file for proprietary video streams generated by hardware like Hikvision DVRs or Hanwha Vision (formerly Samsung Techwin) NVRs.
In this context, the file contains indexing information - timestamps, motion events, and frame pointers - rather than the actual video footage. Users often copy a folder from a security system to a USB drive only to find these unplayable files. You cannot 'watch' an NMD file directly in standard players like VLC Media Player; it serves only as a reference map for the proprietary playback software (e.g., VSPlayer) to navigate the accompanying video blob (often dav or mp4).
Alternatively, in the context of GPS devices running iGO Navigation, the file stores compiled map data or navigation meshes. These are binary, encrypted, and strictly locked to the device's licensing system to prevent piracy, making them virtually impossible to edit or convert for use in generic GIS apps like QGIS.
Conversion Strategies:
Convert.Guru analyzes your NMD file, detects the exact format, and lets you read the text inside.
Users also converted MD, LCP, SAM and IMS files.
If you want to convert NMD file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Hikvision VSPlayer or similar software from the "Surveillance Video Metadata" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to NMD, try Hikvision VSPlayer or another comparable tool in the "Surveillance Video Metadata" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our NMD converter.