[lug] Testing CDs and ISO Images

Dhruva B. Reddy bdhruva at gmx.net
Mon Jun 10 15:29:23 MDT 2002


Thanks!  I'll have to give this a try.  FYI, this doesn't work for
filenames with spaces (e.g., most of my mp3 collection).  The following
does, though:

	find . -type f -exec md5sum {} \; | sort > /tmp/cmpfile

Dhruva

On Mon, Jun 10, 2002 at 03:10:09PM -0600, quoth Sean Reifschneider:
> On Mon, Jun 10, 2002 at 07:21:42AM -0600, Dhruva B. Reddy wrote:
> >I recently burned a data CD and some of the files did not make it on
> >there in their entirety, which I did not find out until after I had
> >deleted the ISO image and original files from my hard drive (^%&*(%).
> 
> Ugh.  I feel your pain...
> 
> I usually do a:
> 
>    find . -type f | xargs md5sum | sort >/tmp/cmpfile
> 
> on both the source directory and the destination ISO.  If they're
> different, there is a problem...  This doesn't catch a lot of more marginal
> discs.  That shouldn't be as much of a problem if you're reading the discs
> on the same drive that's burning them...
> 
> For KRUD, I developed a custom CD tester which is pretty picky about what
> it considers a good disc.  This is important because we're burning discs
> for someone else to use...  Sometimes discs are burned that our drives,
> after some work, can read, but that somone with an older drive cannot...
> 
> Sean



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