Re: Verifying backup CD/DVD results

[Helmut Jarausch <jarausch@igpm.rwth-aachen.de>]

On 26 Dec, Bill Davidsen wrote:
> I found this link: http://swaj.net/unix/cdck/cdck-0.6.0.tar.gz which is 
> a program to read a CD or DVD and report on the goodness of the burn, in 
> terms of current and potential errors. I can't swear that the results 
> are accurate in terms of predicting future failures, but they are 
> consistent, in that a DVD identified as marginal, good, or excellent on 
> one machine will have the same rating on at least two other machines 
> using other brands of DVD reader hardware.
> 
> I have been checking my critical backups and reburning any rated less 
> than good. Only rarely do I see the excellent rating, which may reflect 
> my use of good but not premium media.
> 

I've tried it with the '-p' option on a DVD.
It produces a file of 15 Mb containing 1.5 million lines.
That is too much for my gnuplot (probably it needs more than 1.5 Gb
memory, or some other limitations)

Has anybody had more luck?

Thanks for you remark,

Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany