Adobe Premiere Pro CS6 introduced a redesigned, customizable user interface and high-performance editing tools centered around the 64-bit Adobe Mercury Playback Engine
These directories are often unmaintained and publicly accessible by accident or design. They became popular in the late 2000s and early 2010s as a way to share large software files without using torrents. However, for a program as old as Premiere Pro CS6, these directories are now largely index of adobe premiere pro cs6