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WD ships 320GB notebook drives
WESTERN DIGITAL said it is now shipping its new WD Scorpio 320 GB 2.5-inch Serial ATA (SATA) hard drives for notebook PCs and portable storage devices.
The firm claims the Scorpio hard drives are as big as you can get in a 2.5-inch drive and deliver a 3 Gb/s transfer rate .
According to Jim Morris, WD's vice president and general manager of notebook storage, "As system manufacturers improve performance and add data hungry features, high-capacity hard drives become a key ingredient that allows users to fully benefit from the latest computing technologies.”
The firm says the Scorpio 320 GB drive is a direct result of the investments it has made in proprietary head technologies. µ
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Its called adding platters, and a steady supply of technology advancment

80->120->160->320->500->750->1000

Depending on tond of variables:

80 (2x40platters) -> 120 (3x40) -> 160 (4x40) or (2x80), ETC... till on TB which i believe is 4x250GB platters, but of course there are 320 platters, lol *jk
this could be just the thing to fatten up my ps3
Funny how these leaps go in the HD sizes, 80->120->160->320->500->750->1TB
That's increases of 40GB, 40GB, 160GB, 180GB, 250GB, 250GB.
or: +50% +33% +100% +56% +50% +33%
Weird how theres a leap at 500 in the list of numbers isn't it.
One wonders why they went from 320 to 500 in 3.5" HD's rather than 480GB
It's also weird how the advances in head technology and magnetic medium density still leads to these rather steady numbers, you'd expect the heads at some point to improve in some other number, say 40% or 28% or something more random.