: CHD is a lossless format originally developed for the MAME project. It significantly reduces file size (often by 40-60%) without sacrificing any audio or video data quality.
"CHD changed the game because it turned a cluttered folder into a single, neat file," says Alex, a moderator for a popular retro-gaming Discord server. "You have one file. It’s compressed, so it saves 30-50% of the space, but it’s lossless. You aren’t losing quality. It’s the best of both worlds." sega saturn chd roms hot