Mame Chd File

For further reference, see: docs/chd.txt inside MAME source distribution. Official MAME documentation: mamedev.org

Example CHD locations in MAME:

Input file: game.chd File Version: 5 Logical size: 681,984,000 bytes Hunk Size: 2048 bytes Total Hunks: 332,982 Compression: lzma, flac SHA1: 3b5a... chdman copy -i old.chd -o new.chd -c lzma,flac Create differenced (child) CHD for writable hard disks Parent = read-only base dump. Child stores only changes. mame chd

CHD stands for Compressed Hunks of Data . It is a lossless file format designed for MAME/MESS to store dumps of hard disks, CD-ROMs, laser discs, and floppy disks in a compressed, chunk-based manner. For further reference, see: docs/chd