The "repack" designation is a quality control measure. If a group releases a video and later realizes the subtitles are broken or the file size was unnecessarily large, they will release a "repack" to ensure the community has the best possible version of that specific data. When you see "repack" in a title, it is generally considered the of that file. The Rise of Digital Archiving
The string "fhdjuq752" looks like a randomized hash or a unique identifier used by a specific distributor or automated archiving system. archivefhdjuq752mp4 repack
: Including subtitles, alternative audio tracks, or documentation within a single compressed archive. Security and Verification The "repack" designation is a quality control measure