http://www.cooltechzone.com/index.php?option=content&task=view&id=1137
The technology called Perpendicular Recording is considered to be an evolution to the world of hard drives. According to technical specifications, this new method of magnetizing particles on two opposite ends of hard drives is similar to what you find in today’s hard drives. The only difference, however, is that the magnetically charged particles will be perpendicular instead of longitudinal. This methodology results in applying more particles into a smaller disk area, thereby, increasing the overall hard drive capacity.

I can see the days of floppy backup again.

Only this time it'll be a large stack of DVDs, not floppies.

>>2 It's already happening. I have cakes full of DVD's with data burnt off. They are starting to make a real mess in my room :(

Mmm... cake.

>The technology called Perpendicular Recording is considered to be an evolution to the world of hard drives. According to technical specifications, this new method of magnetizing particles on two opposite ends of hard drives is similar to what you find in today’s hard drives. The only difference, however, is that the magnetically charged particles will be perpendicular instead of longitudinal. This methodology results in applying more particles into a smaller disk area, thereby, increasing the overall hard drive capacity.

And they cost $1000 each.