Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!pasteur!ucbvax!ucsfcgl!cgl.ucsf.edu!seibel
From: seibel@cgl.ucsf.edu (George Seibel%Kollman)
Newsgroups: comp.unix.wizards
Subject: Re: EMERGENCY!!!!!!!!!PLEASE HELP ME IF YOU CAN
Message-ID: <10820@cgl.ucsf.EDU>
Date: 21 Apr 88 06:29:25 GMT
References: <12951@brl-adm.ARPA> <4470002@hpindda.HP.COM>
Sender: daemon@cgl.ucsf.edu
Reply-To: seibel@socrates.ucsf.edu.UUCP (George Seibel%Kollman)
Organization: UCSF Computer Graphics Lab
Lines: 13

[... some poor guy formats a disk with important data ...]

In article <4470002@hpindda.HP.COM> vandys@hpindda.HP.COM (Andy Valencia) writes:
> ...
>will indeed do it for the latter.  For the former, you could hire
>a group of physicists to do small-signal analysis of each track.
>Otherwise you're hosed.
>
I once read about a company that did this - they could read data off of
tapes that had been overwritten, even multiple times, if I recall.  Charged
a lot of money for it, too.   Interesting security hole - better burn those
old tapes.

George Seibel,  UCSF