Originally Posted by bonoz
What is Perpendicular Recording?
This will explain to you everything
Perpendicular recording - Wikipedia, the free encyclopedia
This is the first hard drive from westren digital that use Perpendicular Recording, all the others use Longitudinal Recording. But other hard drive manufacturers like Seagate and Hitachi have used perpendicular recording long time ago.
Perpendicular recording is a newer technology, and it is capable of delivering much more storage density than longitudinal recording