Olympus CAMEDIA D-100 Reference Manual page 33

Always press the shutter button gently. If you press too hard, the camera may
move and the image will be blurred.
If you try to shoot another image before the orange lamp goes out, you will not
be able to take a picture. Wait a few seconds until the orange lamp goes out
before retrying shooting.
The blinking orange lamp indicates that the image you just shot is being
processed.
The length of time required before the camera is ready for the next shot and the
number of images that can be shot vary depending on the record mode.
Never attempt to open the card cover or take out the card or batteries while the
orange lamp is blinking. Otherwise, the image you have just shot will not be
saved. Existing data on the card may also be destroyed.
BASIC SHOOTING OPERATIONS
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