Compare folder contents

Guys,

I have 2 folders. How can I compare the contents, including sub-folders, and show the number of common files and total file count? I have a software build that should span 3 disks but I have a feeling that they have burnt disk 1 3 times and labelled incorrectly!!! Its hard to drill down as the folders get quite deep, everything looks the same so far.

Can anybody help me with a quick sub to loop thru and compare the folder structure and contents, please?

Thanks
Bob

The WinMerge utility in my signature supports that function, maybe that will save you some coding.

vb Code:

Public Sub CompareFiles(ByVal directoryName As String)
        'loop through files to see which are missing
        For Each filename As String In IO.Directory.GetFiles(directoryName)
            'replace current drive letter with one to compare to
            Dim fileParts() As String = filename.Split(IO.Path.DirectorySeparatorChar)
            'you could set require this as input to make it dynamic
            fileParts(0) = "D:"
            Dim compareDirectoryName As String = String.Join(IO.Path.DirectorySeparatorChar, fileParts)
            If Not IO.File.Exists(compareDirectoryName) Then
                'file missing
            End If
        Next
        'loop through sub directories using recursion
        For Each subDirectory As String In IO.Directory.GetDirectories(directoryName)
            CompareFiles(subDirectory)
        Next
    End Sub