Finding out hard drive load cycle count

How can you find out the load cycle count of your hard drive? Is there a program that you must download?

For reference, Hitachi's note on the subject
http://tinyurl.com/mcx6t
(above takes you to, for those where the long URL displays properly http://www.hitachigst.com/tech/techlib.nsf/techdocs/9076679E3EE4003E86256FAB0058 25FB/$file/LoadUnloadwhite_paperFINAL.pdf)
One thing I did not know, but got from that article:
"Parking the heads on the ramp, or “unloading” the heads,
became the foundation of advanced power management
modes including Active Idle, Performance Idle and Low
Power Idle, implemented under Enhanced Adaptive Battery
Life Extender™ (Enhanced ABLE). Usage of Enhanced
ABLE can provide as much as a 20 percent reduction in
power consumption at the drive level."
So, disabling HD sleep should reduce load cycles, I'd guess, at the expense of draining the battery quicker.

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