To start background recording
Select [ON] in the main menu → [RECORDING SETUP] → [BACKGROUND REC].
The camera goes into the background recording mode.
Press the recording button.
Recording starts on slot 1 and 2 simultaneously, and [BACKGR] is displayed on the screen.
Recording on slot 1 can be started or stopped by recording button operations.
On slot 2, the recording operation continues as background recording.