Re: DVD rescue: Rescued data in mapfile goes past end of input file ?

[Fab Stz]

Le vendredi 12 avril 2024, 18:14:09 CEST Christian Franke a écrit :
> Antonio Diaz Diaz wrote:
> > Hello Fab,
> > 
> > Fab Stz wrote:
> >> I have this error message:
> >> 
> >> Rescued data in mapfile goes past end of input file.
> >> Use '-C' if you are reading from a partial copy.
> > 
> > This means that the first DVD reader reported a size larger than the
> > second DVD reader did. Maybe the first reader rescued the two lead out
> > sectors at the end of the DVD, and the second reader does not
> > recognize them as part of the input. See
> > http://www.gnu.org/software/ddrescue/manual/ddrescue_manual.html#Optical-m
> > edia
> Other differences might occur if a rewritable DVD is used: lseek(fd, 0,
> SEEK_END) might return the full recordable size if a DVD recorder is
> used, but not if a reader is used. This might also depend on operating
> system.

Thank you.

One of the device has DVD writer capability, while the other can only read the 
IIRC. So that may explain it.

Regards
Fab