A: The multi-threaded PowerShell script above. On an NVMe SSD with 8 threads, you can convert a 700MB game in ~12 seconds.
for %%f in ("%INPUT_DIR%*.chd") do ( set "BASENAME=%%~nf" set "OUTPUT_ISO=!OUTPUT_DIR!!BASENAME!.iso" convert chd to iso better
Here is an advanced that processes CHDs in parallel: A: The multi-threaded PowerShell script above
However, there is a catch. While CHD is brilliant for storage, many modern emulators, disc burning tools, and operating systems refuse to mount or read it natively. The ISO format remains the universal "lingua franca" of disc images. many modern emulators
chdman extracthd input.chd output.iso