i have placed cat.wav file now at both addresses!! Still its not working !
C:\Users\corleone\Documents\Visual Studio 2010\Projects\MySfml\MySfml\Debug
C:\Users\corleone\Documents\Visual Studio 2010\Projects\MySfml\MySfml\Release
C:\Users\corleone\Documents\Visual Studio 2010\Projects\MySfml\MySfml\Debug
C:\Users\corleone\Documents\Visual Studio 2010\Projects\MySfml\MySfml\Release

) !