I have an issue concerning missing video from an Everfocus DVR. I'm told it's missing simply due to motion detection. Is it possible for a portion of the video to have been edited and a certain segment deleted? I don't have access to the hardware but it is a 16 channel Everfocus DVR. Periodically the video from the .avr file seems to fast forward as well. Is this an issue with recording or does someone need to manually fast forward and record it for it to be on playback after the fact?