Version 0.78 is over 20 years old. It lacks modern emulation fixes for specific games and does not support newer titles added to MAME in the last decade.
Most arcade games are still under copyright. Downloading or distributing ROMs without the copyright holder's permission is generally a violation of law. sp5001abin mame repack
Do not use the latest MAME (0.270+). The SP5001ABIN repack is often built on MAME 0.162 or MAME 0.186 because later versions changed how memory handlers treat Sega’s "Bank Switching." Use the MAME version included in the repack if provided. Version 0
The protection emulation in MAME for SP5001ABIN is CPU-intensive. Fix: Go to Configure Options > Advanced > Wait VSync (Off). Or lower audio latency to 2/3 samples. Alternatively, try the -nothrottle flag but beware of 500% speed. The protection emulation in MAME for SP5001ABIN is