This command compresses the game.chd file and saves the compressed version as game.chd.gz in the same directory.
CHDMAN is a command-line utility originally created by the MAME (Multiple Arcade Machine Emulator) team. It converts uncompressed disc images into .chd files. chdman android
To convert files inside the folder automatically in a batch process, paste this loop script into Termux and hit enter: This command compresses the game