...Mobile devices are not designed as professional cinema cameras, therefore, you need to know immediately when a frame is dropped. Mobile devices don't have perfect frame rate control, therefore, it's easy to get a non-standard variable frame rate. Protake solves this problem fundamentally and makes strictly constant FPS of 24, 25, 30, 60, 120, etc. Everything including device model, ISO, shutter angel, white balance, lens, connected accessories, location, are all well recorded in the file's metadata.