Vivotek NR9682-v2 64-Channel NVR (No HDD) - Manual (Page 239)

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User's Manual - 239
4-8. Settings > Device > Local DB
Since some of VIVOTEK's NVRs runs on Linux, you have to install the Ext2 File System Driver for
Windows to access the recording files from a NVR hard disk.
The file system driver can be found here: https://sourceforge.net/projects/ext2fsd/?source=typ_
redirect
Run and install the Ext2fsd-0.xx.exe. Follow the onscreen instructions to complete the
installation.