Toshiba Corporation today announced commercialization of two advanced 1.8-inch hard disk drives: the MK1626GCB offers a storage capacity of 160GB, the industry's largest in this form factor, while the thin and light MK8022GAA has a capacity of 80GB. Both drives are designed for mobile devices, such as portable media players. Toshiba has started to ship the MK8022GAA, and is also shipping samples of the MK1626GCB.