For power users, this is the method. It uses find and parallel to convert multiple CHD files simultaneously, maxing out your CPU.
: The best choice for Windows users. It provides a simple window where you can drag and drop CHD files and select "Extract" to turn them back into ISO or BIN/CUE files. CHDMAN-Batch-Tools convert chd to iso better
"Don't use those sketchy converters," she said. "You’re using tools that haven't been updated in a decade. If they mess up the header, your game is corrupted garbage. Use the official tools. " For power users, this is the method