I was uploading 4k 4096x2160 videos mov format on youtube and my friends tell me its not 4K when they see it. Was wandering what are the best settings for YouTube, for example 3840x2160p at 24 or 25 or 30fps? and what format: mp4 or mov? both 3840x2160 and 4096x2160 are 4K resolution so which do i choose? In case i wanted 60fps for slow motion, in 1920x1080p mode why cant i find it? i only see 50fps.. thanks everyone!