It is not possible to upload your folders in one go. You will need to upload file after file, image after image, one at a time, needing to find each time the file/image you were at in your folder. And then, to reorganise them in their respective folders… I suppose it would be the same for those who have tons of songs to upload. And the ads. They are many, they last long, and they are difficult to close… But the app is free. If you have a lot of time to lose, this might be the app for you…