These files are massive. While a ROM might be 2MB, a CHD can be several hundred MBs or even GBs.
These are the small files containing the data dumped from the arcade machine's silicon chips (PROMs, EPROMs). These handle the game logic, sprites, and basic sound. A full 0.159 ROM set typically includes thousands of games but is relatively small in disk space compared to the media-heavy titles. 2. The CHDs (Compressed Hunks of Data)
It offers better sound emulation and graphical accuracy than 0.78 without requiring the high-end PC specs needed for the latest MAME releases. How to Manage Your 0.159 Set
If you are looking to build the ultimate arcade cabinet or handheld library, understanding the nuances of the 0.159 ROMs and CHDs is essential. What is the MAME 2014 (0.159) Reference Set?
For retro gaming enthusiasts using platforms like RetroArch, OpenEmu, or Raspberry Pi (RetroPie), the term is legendary. Specifically tied to MAME version 0.159 , this collection represents a "sweet spot" in emulation—balancing modern accuracy with the performance needed for mid-range hardware.
When downloading a "Full Set," you will encounter two primary types of files. To have a "Top" tier setup, you need both. 1. The ROMs (.zip or .7z)
The Ultimate Guide to the MAME 2014 Reference Set (MAME 0.159)