Movies on the site, what is their quality?
Quality 4k Ultra HD 2160p. The format of the MKV movie. The container is repacked from the original Blu-ray disc. And has the same quality 1: 1.

Can I watch these 4K movies on my computer?
Yes, for this you need a VLC 3.0 player. Or any other player that supports the MKV format.

How can I download the Documentary in 4K?
To do this, register on the site TakeFile.Link. Get a subscription and download any favorite Documentary 4K movies.

Put your questions to me on the mail: docu4kclub@gmail.com