To download old 64-bit versions of (formerly known as MAME32), you should look for the rebranded project

Part 8: Legal & Ethical Considerations

Let’s be direct: Distributing copyrighted arcade ROMs is illegal in most jurisdictions. However, emulation is 100% legal. The MAME team spent decades reverse-engineering hardware – a practice protected under Fair Use for preservation.

The main challenge with running Mame32 on 64-bit PCs is that the emulator is 32-bit, which means it may not be compatible with 64-bit operating systems. However, there are ways to overcome this challenge.