It’s High Definition, but optimized. HEVC (x265) is a modern compression tech that gives you great 720p picture quality at a much smaller file size than older formats.
That long string of text is actually a for a specific file, common in the world of high-quality media sharing. It tells you exactly what kind of viewing experience you’re in for. It’s High Definition, but optimized
In the 2000s, a file like this would have taken a whole day to download and would have looked "blocky" or blurry. Today, because of that tag, you can fit two hours of high-def footage into a file the size of a few high-res photos. It’s essentially the "shrink-ray" of the digital video world. It tells you exactly what kind of viewing
It comes with English subtitles hardcoded or embedded into the file. The "Interesting" Take It’s essentially the "shrink-ray" of the digital video
This is the specific "address" for the content—Season 3, Episode 4 through 5.