Toshiba Corporation announced a prototype hard disk drive that uses Discrete Track Recording (DTR) technology to boost capacity to a record-breaking 120 gigabytes (GB) on a single 1.8 inch platter. This is the first drive in the world to use DTR technology, a breakthrough technology that boost the areal density of a perpendicular magnetic recording (PMR) by a full 50 percent.

Toshiba’s latest 1.8-inch HDD in the market offers a single platter capacity of 80GB; application of DTR technology boosts platter capacity to 120GB, and takes the recording density to 516 megabits per square millimeter (333gigabits per square inch). A servo pattern for tracking control is also formed on the disk. Being small, these types of HDD will be good for use in notebook PCs, portable media players and digital movie cameras etc.

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