To convert (Compressed Hunks of Data) files back to (or BIN/CUE) efficiently, the industry standard is , a command-line utility part of the MAME project
.chd file.Final Step: If you strictly need an .iso file, you can mount the resulting BIN/CUE in a virtual drive (like WinCDEmu) and "rip" it to ISO, though most emulators prefer the BIN/CUE or the original CHD. The User-Friendly Option: NamDHC convert chd to iso better
Format Compatibility: CHD is natively supported by many modern emulators like RetroArch and PPSSPP (v1.17+), so conversion to ISO may not always be necessary unless you are using real hardware. To convert (Compressed Hunks of Data) files back