Canon PowerShot S5 IS User Manual page 57

The flash will not fire.
The ISO speed will be fixed to Auto.
The recording pixels of still images taken while
shooting movies are fixed at
being set to
.
Continuous shooting of still images is not available.
Movie shooting may stop when shooting a still image
if there is insufficient internal memory available.
The following icons appear if the recording speed of
the storage media is too slow or if there is insufficient
internal memory available, in which case a still image
cannot be shot.
: While this is blinking, writing is in progress.
Shooting is again possible when it stops blinking
and stays lit.
: Internal memory is full, so shooting is disabled.
(Large) regardless of
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