If you don't want the full MAME suite, many community tools for the , Miyoo Mini , or Retropie bundle the executable with helpful scripts.
– chdman.exe itself is open source (GPL‑2.0+). The executable is freely redistributable, but ROMs, BIOS files, and any original game data you convert are almost always copyrighted . Only use games you own physically or that are explicitly released as public domain. download chdman.exe
CHDMAN is open-source (BSD license). However, you should only compress game images you have legally dumped from your own physical discs. Distributing CHD files of copyrighted games is illegal. This guide is for preserving your personal collection. If you don't want the full MAME suite,