This Disc Monitor will show your current Local Disk activity (read & write) as text and history graph. It is resizeable, colorizeable and some other nice options. It use the fast WMI API. WMI doesn't report this for all drives so the list of available devices is limited to these who support it. Version 2.2 includes unspecified updates.
||Windows 95/98/Me/NT/2000/XP/2003 Server/Vista, Yahoo Widgets Engine