chdman This is part of the MAME toolset. You do not need the whole MAME emulator; you just need the chdman.exe file (Windows) or the binary (Linux/Mac).
CHDMAN works on uncompressed disc images. First, extract your ZIP file into a folder. Convert Zip To Chd
After extraction, you should have files like game.bin + game.cue or game.iso . chdman This is part of the MAME toolset
for /r %%i in (*.zip) do chdman createcd -i "%%i" -o "%%~ni.chd" pause Use code with caution. Save the file as convert.bat in that same folder. PCSX2 (via CHD reader)
RetroArch, Batocera, MAME, PCSX2 (via CHD reader), DuckStation, Redream, and most modern handhelds (Anbernic, Miyoo, Retroid).