gripir@alfader:~$ dd if=/dev/hdc bs=512 of=~/iso.img
dd: Lesen von „/dev/hdc“: Input/output error
0+0 Datensätze ein
0+0 Datensätze aus
0 Bytes (0 B) kopiert, 0,028064 Sekunden, 0,0 kB/s

gripir@alfader:~$ sudo mkisofs -o stratovarius1.iso /dev/hdc
INFO:   UTF-8 character encoding detected by locale settings.
        Assuming UTF-8 encoded filenames on source filesystem,
        use -input-charset to override.
Total translation table size: 0
Total rockridge attributes bytes: 0
Total directory bytes: 0
Path table size(bytes): 10
Max brk space used 0
174 extents written (0 MB)