Buvt (Back Up and Verification Tool)
Disclaimer
The program is offered as is, there might be serious bugs.
I would call it an alpha version, but I use it myself, so test it, comment it, but be careful when you use it with real data.
Which folders are written
Filter files (".buvt-filter" or ".rsync-filter") can be placed in the source tree to control which files and folders are included.
The ".rsync-filter" should work the same way as rsync.
In "Other">"Compare filtering methods" one can compare what is included using the different filtering methods. Also compare with rsync.