: High Efficiency Video Coding (also known as H.265), the compression standard used for 4K video.
: High Dynamic Range, meaning it supports better color depth and contrast. Bullet.Train.2022.MULTi.2160p.WEB-DL.HDR.HEVC.D...
: The source of the file was a streaming service (like Netflix or Apple TV) rather than a physical Blu-ray disc. : High Efficiency Video Coding (also known as H