Storage Density vs Storage Capacity?

[Cheecho]

What I know of these two is

Storage Capacity - Maximum amount of data that can stored on a storage medium.

I'm assuming that means the whole shebang. If I have a 800GB HDD the storage capacity is 800GB. Simple.

Storage Density - Amount of data that can be stored in a given area of a storage medium (as defined by the book)

What exactly does that mean? It almost sounds as if it's the same thing as capacity?

 

[iParanormalx]

Density relates to the density of the medium itself. A HD of the same type but of a greater capacity is more dense than than the other due to the physical size of the disk versus the potential for capacity.

 

[Cheecho]

AHH, this clears up a lot! Thank ya sir.