I'm new to both drones and the Mini. Based on that, I believe that all the photos and video will be saved to the SD card. The images and video on your phone/tablet are cached versions and at a lower quality. For best photo and/or video results take the images from the SD card and load them to our computer/tablet to be viewed and/or edited. As far as sound, the Mini does not have a microphone so it is not able to record any sound. You have to add music when you edit the video. You can use the DJI Fly app to edit and add music or get a more feature rich software for use on your computer/tablet. Hope this helps. Also, if any of this is wrong can some of the more experienced pilots correct me? Thanks!