PLANET NVR-420 - Manual (Page 44)

5.2.2 Opening Event Snapshot images with NVR Media Player
The NVR sends snapshots that are taken when an event occurs to a
destined FTP server or mail recipient. These types of snapshot images are
saved in a proprietary image file format, h4i or p4i, and can only be opened
by the NVR media player.
To do so, Select “Open” from the top menu and then select “Image File”. A
new dialog should be displayed in order to let you locate the image file.
44
4-CH H.264 Network Video Recorder with HDMI
User’s Manual of NVR-420