Martin McCormick wrote: > I think there is a deliberate protocol violation in the > control data that is there to discourage copying as there are > just too many brand new disks (6 all together) for them all to be > duds. I do agree that damaged disks do normally throw these > errors but it also looks like one is not supposed to mount them > as file systems. In that way, they are exactly like iso9660 > disks.
if disks are new and drive is also ok, could be indeed some nasty magic put in place to prevent copying, or something new that is not implemented in the software you have (on jessie) in any case no one can take the power of dd away :D regards