They perform that studios often fail to do themselves. Unlike streaming services (Netflix/Disney+) that remove or alter films for political or licensing reasons, a FraMeSToR remux is immutable.
They are rarely on public trackers because of their size and private‑tracker origins. Remux-framestor
These tools are widely used for manipulating video files, including changing container formats and, with FFmpeg, adjusting frame rates and more. They perform that studios often fail to do themselves