Originally Posted by mikesouth

Im mastering my shoots in 4K as for 1080P and all that I have those renders from 4k (UHD technically) down to a science so no problems there

but I want to make 4K available to my members

I would presume I want to use an mp4 container but its not a deal breaker

I presume I need to use the H.264 codec (would love to use H.265 but seems it isnt widely adopted)

I want to keep the file size reasonable, obviously this isnt for streaming, its for download and playback locally.

If you have experience with this and could suggest codec/container/settings it would be deeply appreciated...dont want to re-invent the wheel if I dont have to

My first try was using the mainconcept avc/mp4 codec (sony vegas 13) at 3840x2160x24p at 4.2mbits/sec (main profile)

imagine my surprise when it looks VERY different on windows media play than on quicktime and both look different than VLC....which looks best

I dont have a 4K monitor....but playing the video full size and seeing a quarter of it gives me an idea of what it looks like

anyway thats the long and short of it at the moment...anyone give me some ideas where to start? TIA