Zoom MRS-1044 Operation Manual page 94

Preventing digital copying of your master tape
4.
Turn the dial to switch the setting "ON."
5.
When you have finished making settings, press the
[EXIT] key several times.
You will return to the main screen.
H
INT
This setting must be made before you mixdown. If you turn
the setting ON after mixing down, it will have no effect.
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ZOOM MRS-1044