[OM] Re: OT drive scrubber

[Sandy Harris]

John Hermanson <omtech1@xxxxxxxxxxx> wrote:

> Can anyone recommend a good (free) driver scrubber utility?  One that
> scrubs free space as well as complete drives? ...

This is actually a surprisingly difficult problem, provided you need to
consider enemies with serious budgets and equipment. The classic
paper is:
http://www.usenix.org/publications/library/proceedings/sec96/full_papers/gutmann/

Here's one file erase utility that is free and appears to be doing it right:
http://sourceforge.net/projects/eraser/


-- 
Sandy Harris,
Nanjing, China

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