Fujitsu has produced the largest laptop hard disk on the market at 300GB.

The MHX2300BT 2.5in drive will be available in late February 2007 and represents a 50 percent increase in capacity over the company's current largest drive of this type. It uses a "second generation" of perpendicular magnetic recording technology, Fujitsu said.

Higher-capacity drives are available but they are typically larger and have slower interfaces. In the case of laptop PCs, the slower interface means they aren't as fast at handling the digital video files that are now common these days while for video recorders the larger size drives lead to bulkier products.

Fujitsu said it hopes to sell 1.5 million of the drives in its 2007 financial year.

Original reporting by Computerworld.