A Prime subscription or a standalone Prime Video membership.

Download buttons on these sites frequently lead to "adware" or "ransomware."

Downloading copyrighted content from unauthorized sources may violate local laws or ISP policies.

Refers to the color depth; 10-bit encodes more colors and usually results in better gradients/less "banding" than standard 8-bit files.

The source of the file was a streaming service (like Amazon Prime Video).