Piracy release groups typically:
: The Matroska Multimedia Container. It is a flexible file format that wraps video, audio, and subtitle tracks into a single file.
When users search for "," they are specifically looking for a high-efficiency version of the film.
HEVC stands for , also known as H.265 . It is a video compression standard designed to be the successor to the widely used H.264 (or AVC). Imagine trying to pack a large suitcase. H.264 is a good packer, but HEVC (H.265) is a master packer. It uses much more advanced and efficient algorithms to compress the video data into a file that is significantly smaller in size while maintaining the same high level of visual quality.
The Rise of High-Efficiency Video Coding: Analyzing the "Maleficent (2014) HEVC 720p" File Format Trend