It is a general-purpose tool like EaseUS or GParted.
The NDDN-W56 doesn't store its core operating software on an internal hard drive; instead, it relies on data from a physical DVD. When the battery is disconnected, the unit's volatile memory is wiped. Without the disk, you cannot: Access the navigation system. Use the rear-view camera. Sometimes even adjust basic audio or FM/AM settings. Finding a Free Download
If this is for a specific product (e.g., a Chinese industrial HMI or a GPS unit), you should replace the bracketed [hardware model] with the actual device name.
Use the free software to check if a newer map works, then buy a one-year license for Navitel (usually $20–$30) directly from their website. You get a legal, virus-free download, and the maps are perfect.