Hitachi DZ-MV350A Instruction Manual page 51

Power save and discharge of battery
If, when "Power Save: On" is specified, the DVD
video camera/recorder is left in the recording
pause status for approximately 5 minutes, it will
automatically turn off.
To restart recording, set the power switch to
"POWER OFF", and then set it to " VIDEO".
To set or release power save, see "Turning DVD
Video Camera/Recorder Off Automatically
(Power Save)" on page 92.
It is recommended that you specify "Power Save:
On", since even during recording pause battery
power is consumed at the same level as during
recording. Especially when power save has been
released, turn the DVD video camera/recorder off
when not in use.
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