Error 0x99000002

Value: -1728053246 | 0x99000002 | 2566914050

What does it mean ?

E_TOCPARSER_INVALIDRIFFFILE  
Invalid RIFF File (Resource Interchange File Format)
Value: 2 | 0x0002 | 0b0000000000000010

Where does it come from ?

FACILITY_DEFRAG  
Defragging
Value: 2304 | 0x900 | 0b100100000000

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