I:\>robocopy /MIR C:\Mathts .\

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   ROBOCOPY     ::     Robust File Copy for Windows     ::     Version XP010
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  Started : Tue Mar 17 21:07:48 2009

   Source : C:\Mathts\
     Dest = I:\

    Files : *.*

  Options : *.* /S /E /COPY:DAT /PURGE /MIR /R:1000000 /W:30

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2009/03/17 21:07:48 ERROR 2 (0x00000002) Accessing Source Directory C:\Mathts\
The system cannot find the file specified.