My WD3200BEVT Scorpio Blue laptop HDD is also running at 50c constantly which I'm quite worried. In fact it has been averaging 50c-55c and sometimes as high as 59c for over a year...

I understand that normal temperature for the HDD should be around 30 to 40 but then there's really nothing much I can do, even after I cleaned the dust the temperature doesn't seem to be affected much, wonder what's the problem with it, anyone has a similar experience?

Laptop Lenovo G450 if it matters...