Thank you for viewing. This is the July 2025 map update data for NSZT-Y68T and NSZT-W68T. If you have remaining map on-demand update time, you can update to the July 2025 map data simply by inserting this disc. To check, press the MENU button, then touch "Settings Edit" in the bottom right corner, then "Map Update". If it says "Update service in progress 20**/**" you can use it. You can download it from the map on-demand site, but this is recommended for those who don't know the download procedure or are not good with PC operations. Please feel free to ask if you have any questions. I will provide support. Please note that this disc is only update data, so it cannot be used on its own.