User manual

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4.5.1 Watermark Verification
Now, DVR supports watermark-checking to identify the authenticity of playback video. DVR program
can only verify one channel at a time in playback mode.
To
verify the playback video doesn’t been modified. Click to check the video. Watermark
verification windows will show up as following:
i
Watermark verification doesn’t support on hardware compression products and video that
is recorded from IP camera.