Hardcore preservationists or users running high-end PC emulation. You would be better off downloading the official "MAME 0.2xx ROM Set" and configuring a modern frontend like LaunchBox or RetroArch for better features and artwork.
A MAME repack is a curated version of the standard MAME (Multiple Arcade Machine Emulator) ROMset. Official ROMsets can be massive (often exceeding 700GB for full collections). Repacks aim to make these more accessible by: sp5001abin mame repack
: Repacks are downloaded as small files but require a decompression/extraction phase that can take significant CPU time. sp5001abin mame repack
What does this mean for you? The you download today may be obsolete in six months. Always check the MAME version history. sp5001abin mame repack