Text of the audio portion of the hard disk drive removal movie
To remove the hard disk drive assembly:
Carefully insert a flat bladed screw driver into the latch.
Rotate the assembly up approximately 60 degrees.
Disconnect the power and signal cables by firmly grasping the connector to avoid damage, then rotate the assembly off the hinge tab and lift it out of the frame.
Disconnect the fan power cable from the system board. Here is a closer look at the latch action.