Formatting SD Cards
Before you can start recording, you will need to format your SD cards to exFAT format. This
format is compatible on both macOS and Windows computers. It's easy to format your media
using your Blackmagic Duplicator 4K's 'format' feature and can be used to format up to 25 SD
cards simultaneously on a single unit.
To format your SD cards on Blackmagic Duplicator 4K:
1
Press the 'Menu' button on the control panel.
2
Using the illuminated soft menu buttons on each side of the LCD, press 'record'.
3
Press the left arrow soft button to select the 'format cards' setting, then press 'format'
at the bottom right side of the LCD menu.
4
A warning message will appear asking you to confirm the format. Press the 'format'
soft button to confirm the format, or press 'cancel' to stop.
5
A progress bar will show you the progress of the format. When the format is complete,
press 'OK'.
6
Press the 'menu' button on the control panel to return to the home screen.
That's all there is to getting started. With your video and audio connected and your SD cards
formatted, you can now start recording!
TIP
Different types and sizes of SD cards may format at different speeds so some
cards will complete formatting faster than others.
Recording
You can start recording immediately by pressing the record button on the control panel. But we
recommend setting the recording mode, codec, and bit rate first as these set the type of
recording used, plus the length and quality of your recording.
Setting the Recording Mode
Blackmagic Duplicator 4K has the following recording modes:
Duplicate: write to all SD cards simultaneously.
Single Disk: write to one SD card at a time in order and stop recording when the
last card is full.
Single Disk Overwrite: write to one SD card at a time in order, and overwrite in a
continuous loop.
Duplicate Mode
In duplicate mode, Blackmagic Duplicator 4K records the same video onto all SD cards at the
same time.
Single Disk Mode
Blackmagic Duplicator 4K is an ideal logging recorder with a multitude of applications from
television broadcasts to security cameras. It writes to one SD slot at a time, and when that
SD card is full then it continues on the next available slot. When Blackmagic Duplicator 4K is in
single disk mode, it stops recording when all SD cards are full. With 25 recording slots available,
you can easily record for as long as a week. For continuous and uninterrupted recording, you
can swap out full cards for empty cards at any time.
Recording
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