C:\>dcopy a: c:\disketa0.img
Please insert disk to copy FROM in drive A:
Input disk has 2 heads, 18 sectors / track
Total capacity is 1474560 bytes

Sector 90 - data read error : Controller failure
Sector 91 - data read error : Controller failure
Sector 92 - data read error : Controller failure
Sector 93 - data read error : Controller failure
Sector 94 - data read error : Controller failure
Sector 95 - data read error : Controller failure
Sector 96 - data read error : Controller failure
Sector 97 - data read error : Controller failure
Sector 98 - data read error : Controller failure
Sector 99 - data read error : Controller failure
Sector 100 - data read error : Controller failure
Sector 101 - data read error : Controller failure
Sector 102 - data read error : Controller failure
Sector 103 - data read error : Controller failure
Sector 104 - data read error : Controller failure
Sector 105 - data read error : Controller failure
Sector 106 - data read error : Controller failure
Sector 107 - data read error : Controller failure
Sector 2880

C:\>