Super Mario Galaxy 2 Highly Compressed High Quality -

The game’s prerendered cutscenes (e.g., the intro and ending) are stored as standard motion JPEG. These can be transcoded to modern, efficient codecs like H.264 or H.265 (HEVC) using a constant quality (CRF) setting of 18–20. At this level, the human eye perceives no difference from the original, yet file sizes drop by 50–70%. A 200 MB cutscene becomes 60 MB. This is where “high quality” meets “high compression.”

Right-click the game in Dolphin and select "Convert File" to RVZ. WBFS Format (Recommended for Real Wii Hardware): "Scrubs" the junk data, reducing the file size of Super Mario Galaxy 2 to approximately 1.3 GB to 1.4 GB Best for playing via USB loaders on a modded Wii. WIA Format: super mario galaxy 2 highly compressed high quality