Searching for this specific string—Sherlock.S02.MULTI.1080p.BluRay.HDLight.x265-H4S5S—reveals it is a technical filename for a high-definition release of the second season of the BBC series Sherlock.
Compression: Using x265 settings to shrink a ~30GB disc down to a few gigabytes.
bluray: The original source of the high-quality video was a Blu-ray disc. sherlocks02multi1080pblurayhdlightx265h4s5s work
Here’s an interesting write-up on what that title implies and why it might matter to someone curating a high-efficiency media library.
HDLight: A term used in the encoding community for releases that prioritize a balance between high-definition quality and a significantly reduced file size compared to full Blu-ray rips. Searching for this specific string— Sherlock
hdlight: A term used by certain encoding groups to indicate a "mini" encode—a file that maintains high definition but has a significantly smaller file size for easier storage and downloading.
Such a release is almost certainly unauthorized copying. If you want a solid legal feature for Sherlock S02 in high quality, the best option is: Original English 5
The World of Multi-Language Video Content: Breaking Down Barriers in Global Entertainment - A blog post discussing the rise of multi-language video content, how it's produced, and its benefits for global audiences, illustrated with examples like the provided filename.