Verify the file source to ensure it isn't a "fake" file designed to harvest data.

Instead of 200MB, aim for . Download the full 8.5GB ISO. Use a tool called CISO (Compact ISO) to convert it to .cso format.

Compressing a 6.5 GB game down to 200 MB represents a compression ratio of over 95%. While small ROMs or 2D games can reach high ratios, complex AAA titles like God of War II

Many files found on third-party sites are "garbage files" or "dummy data" that have been compressed. Once extracted, they may appear to be several gigabytes but contain no actual game data and will not boot in an emulator like 3. Security and Performance Risks