On Mon, 07 Sep 2009 04:07:35 +0200
Jesus Sanchez <zexe...@gmail.com> wrote:

> Josh Grosse escribis:
> > On Mon, Sep 07, 2009 at 02:45:33AM +0200, Jesus Sanchez wrote:
> >   
> >> on 4.5 stable.
> >>
> >> I'm using a CD drive with no problem until I need to create an ISO
> >> file from a data CD-ROM for what I use this:
> >>
> >> # dd if=/dev/rcd0c bs=32k > image.iso
> >>     
> >
> > A CD or DVD block is 2k, not 32k.
> >
> > You may find the readcd(1) tool included with cdrtools more helpful
> > than dd(1) for reading optical discs.
> >
> >
> >   
> 
> yep, tried with bs=2k and bs=4k and get same problem.

and that is the intended behaviour of 'dd'. read the manpage.
if the input ends unexpectedly (as it does in your case) you get info
directed at std err - an error.

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