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Re: Corrupted notebook

  • To: mathgroup at
  • Subject: [mg21701] Re: Corrupted notebook
  • From: "Kevin J. McCann" <kevin.mccann at>
  • Date: Sat, 22 Jan 2000 02:53:11 -0500 (EST)
  • Organization: Johns Hopkins University Applied Physics Lab, Laurel, MD, USA
  • References: <86abfm$>
  • Sender: owner-wri-mathgroup at

I am sorry to report that my experience along with that of my students is
that you are out of luck.  I have tried the decorruption routine, and only a
small fraction of the stuff is fixed.  I have never gotten a satisfactory
answer about why this happens.  I run on PC's both W98 and WNT. It has
happened to me with notebooks that have been successfully run then saved
then Mathematica exited - no obvious problems like a crash. Then next time much
wailing, gnashing of teeth, four letter words, and back to the drawing
boards.  My solution:
1) maintain a printed copy
2) keep backups.


Kevin J. McCann
Johns Hopkins University APL

<jvera at> wrote in message news:86abfm$8jn at
> Dear members,
> A notebook of mine, containing painfully gathered
> work of mine, is now corrupted.
> I browsed through MathGroup archives and found
> Corruption.m . I successfully installed and ran it,
> using a command that started writing my file cell
> by cell to a new notebook, named Untitled-2.
> This process went on and on, for more than 12
> hours. (Yes, I know, my processor is slow, with a
> fast one it would have been 3 or 4 hours). I went
> to bed and my PC went on working.
> In the morning I went directly to the machine,
> anxious to see my brand new corrected file.
> I only found the kernel opened. The 2 notebooks
> that were running (Untitled-1 performing the
> Corruption.m tasks, and Untitled-2) were now closed.
> What happened to the very long list of cells that
> were written to Untitled-2? Are they lost, or lying
> somewhere in the kernel? I am affraid to close it,
> since I could lose the information.
> I had seen postings in MathGroup about corrupted
> files, but, as it often happens, did not think it
> would occur to me. In my study fo related postings
> in MathGroup, I saw about an interesting way of
> doing a backup copy, by changing some kernel general
> setting that eliminates all of the outputs. I did
> not find out how does it work yet, though.
> I am really scared. Maybe I could get some help on
> the issue, as I have done previously. This list is
> very useful.
> I also would be glad to know of anything like an online
> support for Mathematica users, where one could solve
> emergencies like this one. The WRI pages where I got the
> Corruption.m application gave no tips about the way the
> package was going to work.
> Thank you very much.
> Julio Vera
> Alenar SA
> Uruguay
> Sent via
> Before you buy.

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