Legend of Sudsakorn: before a unicorn [full movie] - ENG SUB MonoGlobalTV YouTube• Nov 25, 2013

You can watch the full movie with English subtitles here to see these features in action:

The film itself is a mix of live-action and computer-generated imagery, bringing to life mythical creatures like the Ma Nin Mangkorn (a half-dragon, half-horse steed).

The "useful features" of this specific file format ( MKV with Dual Audio ) include:

The .mkv format is highly versatile, supporting multiple audio tracks, subtitle streams, and chapter markers in one file.

Provides a High Definition (HD) viewing experience, balancing clear visual quality with a manageable file size.