0 ."................" .....
65535  "................" .?.<   
65535  "........
......." .?.<   
65535  "................" .?.<   
65535  "................" .?.<   
2184  "...............[" .?.<   
34952  "................" sr?    
35976  "....X..[........" sr?    
66,illegal track or sector,55,55