Specifications

3.2.2 Record
⚫ Dual-stream recording can choose the storage. However, currently, dual stream only has
two storage options: built-in SD card and external SD card.
⚫ Recording mode: sub-stream recording, mirror recording, alarm recording backup and
none.
1) Sub-stream recording: MVDR encodes two data streams, namely primary stream and
sub-stream.
2) Mirror recording: completely back up the HDD data to the SD card.
3) Alarm recording backup: the recording will be stored only when an alarm is generated.
4) None: it is loop recording for the dual SD card.
⚫ Check the channel that requires sub-stream settings. The user can set the sub-stream
recording by the click. The use can click to make recording settings of sub-stream.
⚫ Recording OSD. The user can choose the corresponding OSD information, which can
be superimposed by video. Besides, he should distinguish recording OSD and live view OSD.