- Checkout the main directory of openearthrawdata. Set Checkout Depth to 'Only this item' or 'Immediate children, including folders'. Do not choose 'Fully recursive'!
- Open the Repository Browser: Right-Mouse Button (RMB) on the newly created folder ==> TortoiseSVN ==> Repo-browser (or immediately Update to revision on a subfolder).
- Navigate to the folder you want to checkout completely.
- Press RMB on that subfolder, and select 'Update item to revision'.
- Press OK