Community forums for The Witcher mention a mod called "Flash Mod" where the attachment easy=medium=hard.rar was used to distribute difficulty-adjustment files.
Unlike .zip files, which are natively supported by most operating systems, .rar files require third-party software like WinRAR or WinZip to open. HARD.rar
It serves as a pre-configured sound setting that producers can load to achieve a specific "hard" synthesized tone. 2. Gaming Mods and Map Packs Community forums for The Witcher mention a mod
The name appears in bootleg or fan-made archives for classic rock enthusiasts: HARD.rar