Panasonic LUMIX DC-S5M2 Operating Instructions And Owner's Manual page 466

Playing Back and Editing of Images – Playing Back Videos
•
The camera can play back videos in MP4 and MOV formats.
•
Video recorded with a [System Frequency] setting that is different to the current
one cannot be played back.
•
If the reading speed of the card is slow, playback may pause or it may not be
possible to play back smoothly.
•
You can set the operation for when playback of video finishes:
( [Behavior After Video Playback]:
•
You can assign switching of the recording screen/playback screen to an Fn
button:
( [Rec / Playback Switch]:
495)
512, [Rec / Playback Switch]:
466
515)