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
The 0.159 core is incredibly stable and has been "fixed" over years of community use.
The is a snapshot of every supported game as of late 2014. It is widely considered the standard for: mame 2014 reference set mame 0159 roms chds top
Parents and clones are combined into one zip (saves space).
The "Clone" game relies on the "Parent" zip to run (standard for most reference sets). It offers better sound emulation and graphical accuracy
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?
These files are massive. While a ROM might be 2MB, a CHD can be several hundred MBs or even GBs. It is widely considered the standard for: Parents
MAME (Multiple Arcade Machine Emulator) is constantly evolving. As the developers update the code to be more accurate to the original arcade hardware, the requirements for the ROM files change.