Content labeled as "Reducing Mosaic" or "RM" is generally unofficial. These are community-made or AI-enhanced versions of the original retail release, aimed at providing a "decensored" viewing experience. Because these rely on AI to "guess" what was behind the pixels, the visual quality of the uncensored areas can vary significantly.
While that specific string of text looks like a mix of a technical model number and a personal sentiment, it points toward a very specific niche in digital media: the removal or reduction of censors (mosaics) in video content.
A more user-friendly option that uses AI to "remaster" low-quality footage into 4K resolution. Why "Spending Your Full" Effort Matters