Canon PowerShot A650IS User Manual page 13

Preparations
111
3.
Close the cover (CD), and press downward as you slide
it until it clicks into place (0).
Ensure that the memory card is correctly oriented before
inserting it in the camera. Inserting it backward may cause the
camera to fail to recognize the memory card or to malfunction .
• To Remove the Memory Card
Push the memory card with your finger until the memory card clicks
and then release it.