If the hard drive still works, boot knoppix on the machine, then run 
'badblocks -svvw /dev/hda1' or whatever the drive is. That will zero 
everything in the disk. I've not found a recovery utility yet that will find 
anything after that.

nathan

On Thursday 13 January 2005 04:25, mike hoy wrote:
> Hi
>
> If somebody wanted to completely destroy a harddrive or flash drive so
> that no data whatsoever could ever be extracted from it how would they
> go about doing that?
>
> example:
>
> your an owner of a small company with sensitive information on your
> hardrive and you can no longer use the drive because it's broken.
>
> can you soak it in acid or break it into bits and pieces..
>
> is there anyway to do this?
>
> My emphasis here is on absolute destruction of the hard disk or flash
> disk or zip disk or even a cdrom.
>
> If the hardrive were still useable would a format be sufficient to wipe
> the data?
>
> I've heard that formatting the hdd's don't actually erase all of the data.
>
> mike h
>
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