The most immediate benefit is file size. The PSX library is notorious for games that contain large amounts of Red Book audio (CD-quality music) and dummy data.
| Format | Average Size (700 MB disc) | Ratio | |--------|----------------------------|-------| | BIN/CUE (uncompressed) | 700 MB | 1.00 | | PBP (PSP) | ~400 MB | 0.57 | | | ~250-350 MB | 0.36-0.50 | psx chds
: Unlike the .PBP format (often used for PSP), CHD is completely lossless, meaning you can convert it back to the original .bin/.cue with zero data loss using CHDMAN . How to Convert Your Games The most immediate benefit is file size