help me understand my budget DVR terminology please

[oksubaru 0]

Hello, I'm new in here , oh, I love your choice of smilies !!

 

I have a very cheaply bought 4ch DVR so no real brand name on it at all!

 

Its OS is Embedded Linux, choice of PAL or NTSC

It was cheaper as I could supply a used SATA drive.

I am trying to understand in the set up and record sections

SET UP says device ID 255 - no wory

Device name Net DVR

Overwrite yes / never - means overwrite image recorded if left on long enough ?

Lock time yes/no ?? not quite understand function differences

autoswitch yes/no choice I think - again - no idea meaning of function

display off choice between never to 1 to 30 min - does this turn video screen off?

 

In the record set up screens I can choose channel number,

type , manual, alarm, MTD (motion) or sch(eduled)

 

down the bottom is a copy to button with a choice from one to four, or all

 

I sort of don't understand why if I select camera/channel above, what is this copy to function for? As a safety I have always set up one camera channel at a time and made sure ch1 is set to copy to 1 and is working but I do not understand its options if the channel number is different to the copy to number??

 

Any help is appreciated.

 

Thankyou