: Refers to the color depth. Most standard videos are 8-bit; 10-bit allows for billions more colors, which significantly reduces "banding" (visible lines in gradients like skies or shadows) and provides a smoother image.
: The movie title and its original theatrical release year. : Refers to the color depth
: The file container (Matroska). It is popular because it can hold multiple audio tracks (different languages), subtitle tracks, and chapter markers all in one file. 10-bit allows for billions more colors
: Likely indicates "Original" audio tracks are included (often meaning no third-party dubbing or unwanted alterations). : Refers to the color depth