GoPro HERO 3 User Manual page 24

CAMERA SETTINGS
LOOPING VIDEO
Looping Video mode allows you to record a continuously looping video that
overwrites itself until you press the Shutter/Select Button
Looping Video options inlcude:
OFF (Default)
Camera records until memory card is full, then overwrites
Max video
with a new video.
Camera records for 5 minutes, then begins a new video,
5 min video
progressively overwriting the previous 5 minute video.
Camera records for 20 minutes, then begins a new video,
20 min video
progressively overwriting the previous 20 minute video.
Camera records for 60 minutes, then begins a new video,
60 min video
progressively overwriting the previous 60 minute video.
Camera records for 120 minutes, then begins a new video,
120 min video
progressively overwriting the previous 120 minute video.
Multiple chapter files are written to your memory card.
This allows for small segments of content to be overwritten
PRO
during loop recording. When viewing on a computer screen,
TIP:
you will see separate files for each time segment. Use video
editing software if you wish to combine files into a longer video.
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to stop it.