Problem with dd

[Paul Smith]

On 4/17/06, Ed Greshko <Ed.Greshko at greshko.com> wrote:
> > I am trying to use dd to backup a video dvd, but getting
> >
> > dd if=/dev/dvd of=dvd1.iso
> > dd: reading `/dev/dvd': Input/output error
> > 67264+0 records in
> > 67264+0 records out
> > 34439168 bytes (34 MB) copied, 24.871 seconds, 1.4 MB/s
> >
> > Any ideas?
>
> Me thinks you are trying to backup a protected DVD....  No can do with dd.
>
> Suggest you try....
>
> http://dvd.chevelless230.com/dvdbackup.html

Thanks, Ed. I am not sure about that, but, in any case, I am going to
install dvdbackup. According to

# locate libdvdread
/usr/lib/libdvdread.so.3
/usr/lib/libdvdread.so.3.1.0
/usr/share/doc/libdvdread-0.9.5
/usr/share/doc/libdvdread-0.9.5/AUTHORS
/usr/share/doc/libdvdread-0.9.5/COPYING
/usr/share/doc/libdvdread-0.9.5/NEWS
/usr/share/doc/libdvdread-0.9.5/README
/usr/share/doc/libdvdread-0.9.5/TODO
#

I do not have /my/prefix/to/libdvdread/include nor
/my/prefix/to/libdvdread/lib. Then, I ask: how can I compile
dvdbackup? To compile dvdbackup, I have to do the following:

"Compile dvdbackup like this gcc -o dvdbackup
-I/my/prefix/to/libdvdread/include \
-L/my/prefix/to/libdvdread/lib -ldvdread dvdbackup.c"

Paul