On Sat, 18 Aug 2007 17:14:43 +0200, Sebastian Leske wrote:

> thanks for the super-fast reply.

You're welcome.
 
> > In my understanding cdck tries to find problematic factors that
> > _might_ make sectors unreadable in the _future_, and it warns about
> > these sectors.
> Yes, that is true. However, the message 
> "unable to read sector XXX, reason: Input/output error
> looks to me like cdck found a hard error, not just bad timing. 
> That would mean that that sector is already unreadable, and the file
> which uses it should in consequence also be unreadable.

Right, if a file is actually using this sector ...
(which might not be the case for the very last sectors of the CD)
 
> > I'll check with the upstream author.
> Good idea. Maybe I'm just misunderstanding the output of cdck, or maybe
> my test CDs where burnt incorrectly.

Yup, I've contacted him already, hopefully he can shed some light on
our questions.
 
> In that case, it might be enough to add a note to the docs about
> possible reasons for read errors and when these are harmless - or not.

Right.

Cheers,
gregor
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