one or more of these     one of these if ERROR_STATUS is set

     ERROR_STATUS             WRITE_PROTECT_VIOLATION           
     BUSY_STATUS              UNKNOWN_UNIT                      
     DONE_STATUS              DRIVE_NOT_READY                   
                              UNKNOWN_COMMAND                   
                              CRC_ERROR                         
                              BAD_DRIVE_REQUEST_STRUCTURE_LENGTH
                              SEEK_ERROR                        
                              UNKNOWN_MEDIA                     
                              SECTOR_NOT_FOUND                  
                              PRINTER_OUT_OF_PAPER              
                              WRITE_FAULT                       
                              READ_FAULT                        
                              GENERAL_FAILURE