Toshiba Prototypes 120 GB 1.8" Single Platter Drive

Toshiba has announced a prototype 1.8" HDD that fits 120 GB on a single platter via a breakthrough called Discrete Track Recording (DTR). The drive uses the same form factor currently used in Apple's iPod classic.

Currently, Apple uses an 80 GB single-platter drive for its thinner model and a 160 GB dual-platter drive for its slightly thicker model. Toshiba's technology would allow single-platter models to achieve 120 GB densities, with a dual-platter option going as high as 240 GB.

Toshiba plans to begin mass producing the drives in 2009.