Error 0x400D005F

Value: 1074593887 | 0x400D005F | 1074593887

What does it mean ?

NS_I_REBUILD_DISK  
A NetShow administrator at network location %1 started rebuilding disk %2.
Value: 95 | 0x005F | 0b0000000001011111

Where does it come from ?

FACILITY_MEDIASERVER  
Windows Media Server
Value: 13 | 0x00D | 0b00001101

Other Errors for FACILITY_MEDIASERVER