For retro gaming enthusiasts, the quest for the perfect digital library is a never-ending journey of balancing quality, compatibility, and storage. If you’re building a PlayStation 1 (PSX) collection, you’ve likely encountered various file formats—ISO, BIN/CUE, PBP, and increasingly, .

Use the command line chdman createcd -i "game.cue" -o "game.chd" .

To convert your existing collection to CHD, the most common tool is , part of the MAME suite.

Unlike some formats that "strip" audio or video quality to save space, CHD is 100% lossless. You get the exact same data as the original disc but in a smaller package.