CHD sets are massive. While a full "merged" set of standard arcade ROMs might take up ~70GB, a full CHD collection can easily exceed several terabytes . Famous Examples of CHD Games
| Version | MAME version introduced | Notes | |---------|------------------------|-------| | v1 | Early MAME | Obsolete, don’t use | | v2 | ~0.120 | Still seen, but old | | v3 | ~0.125 | Added FLAC support | | v4 | ~0.136 | Improved compression | | v5 | ~0.162 | Current standard | chd files for mame