Monitoring is a file in MBF format. I don't know what player can play video files in other ways! Ask the great gods to help.

In order to save disk space, surveillance video generally adopts special format. These video formats are not common and cannot be put in a general player. But when you buy a hard disk video recorder or video capture card, you will bring a CD with special player software on it. You can find this thing. If not, consult the manufacturer according to the phone number on the equipment label, or ask a friend with the same equipment to borrow this software. If it doesn't work, put this video in the "format factory" software and convert it into a common format. If not, you can only watch and take pictures on that monitoring device.