When you shoot with 640x480 60fps, it records and the MP4 is visible on the computer but when you try to view it on the DJI Vision Android app (samsung Galaxy S4) you get an error. This happens both when you try viewing it from the card via wifi, and also when you try viewing it from your phone after you synced. As an aside, does anyone know what folder the DJI Vision app saves to. Saved pictures and videos do not appear in the Gallery on an Android Phone. Thanks.