I bought this app to transfer high-res RAW files from a Leica S2. When I select photos then download them as a zip file (DNG) the files have a DNG extension after downloading to the computer but are about 1/3 the size of a typical DNG file from the camera. In fact, they seem like JPGs that just have a DNG extension. If I click a single file to download from the browser interface I get a full DNG. This seems like a bug with the batch zip download of DNGs.