This view from the bottom of the Widget (while removed from the drive cage) shows the solenoid gap closing as the brake is released around 20 seconds into the sequence.
The squeaking noise during the surface scan is typical of the Widget's head seek motor.
The Lisa's self-test clicks and beeps are also audible. Note that the time it takes for the Lisa to do its self test varies with how much memory is installed (your Lisa self-test may be completed faster or slower).[LisaFAQ] > [Hardware] > [Hard Drives] > [Widget Internal Hard Drives] (Comment on this answer)