Under The Dome Season 2 S02 1080p Bluray X264-r... File
The answer lies in and scene conventions . The release group in your keyword (R...) released this in 2014-2015, just as x265 was becoming viable but before it was universal.
For home media enthusiasts, the 1080p Blu-ray release by ensures a high-quality viewing experience: Under the Dome Season 2 S02 1080p BluRay x264-R...