17 Jul
                
                    2007
                
            
            
                17 Jul
                
                '07
                
            
            
            
        
    
                8:34 a.m.
            
        Also, re: I/O errors with 'dd' - do a 'man dd' and see what retry/'force'/keep-going-on-errors-encountered options it has - I'm sure there is one there to tell it to retry xxx times, if no luck, move on to the next block, etc.
GNU ddrescue seems to be fairly useful. It has helped me rescue data off damaged CDs before. See http://www.gnu.org/software/ddrescue/ddrescue.html -- Sam