If you have multiple duplicators daisy chained together, you can record even longer. As soon
as all cards are full in the master unit, recording will continue on the first slave unit through the
chain to all connected units. Recording stops when the last card on the last unit is full.
Single Disk Overwrite Mode
Single disk overwrite mode allows a single Blackmagic Duplicator 4K with two or more SD cards
to loop back to the first card when the last card is full so it records continually. It writes to one
SD slot at a time. When one SD card is full then it formats and writes to the card in the next
available slot.
This mode is similar to single disk mode, except the unit formats and writes to the next card in a
loop, rather than stopping after the last card is full. In single disk overwrite mode, your
Blackmagic Duplicator 4K will keep recording indefinitely until you press stop.
TIP
If you are recording in single disk mode or single disk overwrite mode,
you can insert new SD cards with space at any time. Duplicator 4K will
continue recording as long as there are cards in any of the 25 slots with free
space to record onto.
To set a recording mode:
1
Power Blackmagic Duplicator 4K.
2
Press the 'menu' button on the front control panel to open the LCD menu. The soft
buttons next to the screen are lit to refer to options on the menu. Press the 'record'
soft button.
The record menu has dots at the bottom of the screen to indicate how many options
are available. If you want to move up to the previous level of the menu hierarchy at any
time, press the 'back' button. Use the < and > buttons to cycle through the options.
3
Navigate to the 'mode' option, and click 'change'.
4
Press the 'select' button to use the mode currently shown. The LCD menu indicates the
option you have selected.
5
Press the 'back' button to return to the record menu. The option you selected is now
displayed.
For more information on daisy chaining multiple duplicators together, refer to the
sections titled, 'daisy chaining' and 'daisy chaining multiple duplicators'.
TIP
If an important event is recording in single disk or single disk overwrite
mode, and you want to remove the SD card without waiting for the current
card to fill up, simply press and hold the 'record' button for three seconds to
switch to recording on the next SD card. When recording in duplicate mode,
you can press the 'append record' button. For more information, see the
'Append record' section.
Setting the Codec
Your Blackmagic Duplicator 4K can record files using H.264 or H.265 compression codecs.
H.264 compression is the default codec.
Recording
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