Best and Worst hard drives (for now) and the best manufacturers have for the year 2016

Manufacturers of hard drives publish all kinds of information about the durability of their products, and natural that any company praising its product to the user, but to know the difference between this massive  from hard drives
The report focused on the comparison between the four large, well-known companies in the world for the manufacture of hard drives , a "HGST", "Seagate", "Tochiba" Finally, Western Digital