From mboxrd@z Thu Jan  1 00:00:00 1970
From: Robert L Mathews <lists@tigertech.com>
Subject: Re: Storage system
Date: Fri, 07 Feb 2014 11:16:17 -0800
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On 2/7/14, 8:11 AM, David Brown wrote:

> In an experiment, researchers wrote some bits to a sample of hard drive
> material, overwrote them once, then tried to read the old data.  I can't
> find the reference (I really wish I could)

Overview at:

 http://digital-forensics.sans.org/blog/2009/01/15/overwriting-hard-drive-data/

Detailed article at:

 http://privazer.com/overwriting_hard_drive_data.The_great_controversy.pdf

-- 
Robert L Mathews, Tiger Technologies, http://www.tigertech.net/