motion detect help with my Dahua DVR

[cloudy 0]

I brought my Dahua 8 channel DVR a few months ago and have been playing around with it occasionally before I install it in my new place in a few weeks

 

i have 2 cameras connected but they seem to record video continously

 

i have both cameras pointing in my room and im watching the live view on my computer screen and if i sit still the red motion trigger icon dissappears after a few seconds(not triggered) on both views but it still records the vision.

 

when i go into the ENCODE menu and change the type box from REGULAR to MD and save for that channel, when i go back to the menu it is reset back to REGULAR

 

As in future i dont want to watch all days worth of footage to find out if someone has been around, only the motion triggered footage

 

it is also very motion sensitive as when set on '1' the lowest sens it triggers with the slightest movement , - im guessing im going to have to screen out any trees etc.

 

any suggestions,

 

Also

I followed a youtube posting on how to view footage on my phone but couldnt get it to work, so if anyone has any other guides that might help?