XCopy is a very useful tool included in all versions of Windows. With XCopy you can copy large amounts of data with ease. Plus it has a switch that lets you copy over the NTFS permissions.
Creating an initial full copy with XCopy
xcopy "C:\Source Folder" "F:\Destination Folder" /X /H /E /V /C
Copy files and folders that changed since initial copy
xcopy "C:\Source Folder" "F:\Destination Folder" /X /H /E /V /D /Y /C
Explanation of XCopy switches
|/? ||Shows a list of all possible XCopy commands.|
|/X||Copies file audit settings and file ownership and ACL information.|
|/H||Copies hidden and system files.|
|/E||Copies directories and subdirectories, including empty ones.|
|/V||Verifies each new file.|
|/D||Copies files changed on or after the specified date (D:m-d-y). If no date is given, copies only those files whose source time is newer than the destination time.|
|/Y||Suppresses prompting to confirm you want to overwrite an existing destination file.|
|/C||Continues copying even if errors occur.|
The full XCopy documentation can be found at microsoft.