Based on the file naming convention you provided ("HEVC 10bit DVDRi..."), this refers to the widely circulated fan-encode/repacks found on private trackers and torrent sites (often labeled as "Babylon 5 - Complete Series - HEVC 10bit DVDRip" or similar).
A typical "Babylon 5 – Complete Series – HEVC 10bit DVDRip" pack includes: Babylon 5 - Complete Series - HEVC 10bit DVDRi...