While older, later versions of ePSXe added support for CHD, though it is less optimized than DuckStation. Conclusion
Download the latest version of MAME from the official website and extract it. Look for the file named chdman.exe .
Emulators read CHD files "as is" during runtime, so there is no need to unzip them before playing, which saves both time and temporary storage space. Comparison with Other Formats
: Unlike the "PBP" (EBOOT) format, which is often lossy and can break RetroAchievements, CHD is
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