Super Mario Galaxy 2 Highly Compressed High Quality

Genuine high-quality compression of a Wii game like Super Mario Galaxy 2 (original ~4.2 GB) usually results in files around 150 MB – 500 MB using formats like WBFS or compressed RVZ. Be cautious of suspiciously tiny files (e.g., under 50 MB) — they often lack audio, cutscenes, or are fake/malware. For emulation (Dolphin), the RVZ compression format is recommended for quality vs. size.

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Compression typically reduces quality, but you can counteract this by using rather than relying on the compressed base assets. Genuine high-quality compression of a Wii game like

To reduce the file size without losing "High Quality" (lossless compression), enthusiasts use specific formats recognized by modern emulators: RVZ Format (Recommended): Developed specifically for To reduce the file size without losing "High