Toshiba is releasing one high-capacity HDD after another lately. Today, the company announced [PDF] two new hard discs, which are poised to find their way into our notebooks very soon, the MK7559GSXP (750GB/pictured) and the MK1059GSM (1TB). The 750GB model is the world’s most capacious 2.5-inch/9.5mm high HDD. Toshiba released its predecessor (holding 640GB) back in September last year.