For most home users, especially those who do not want to manage dependencies or maintain perfect collections, a is the most straightforward option.

A Full 0.261 setup including CHDs requires roughly of storage space. Most people pass on this, as loading CHDs from a mechanical hard drive creates lag; SSD/NVMe is required for smooth emulation.

that have been officially released by their original developers, most enthusiasts look toward community-driven preservation sites: The Internet Archive:

Use a ROM manager like ClrMAME Pro or ROMVault :

Sound files needed for certain games that MAME cannot accurately emulate. Managing Your ROM Set

Balanced space savings; most common format for enthusiasts. Merged

Run an audit. The software will automatically rename mislabeled files, remove obsolete data dumps, and identify missing files needed to complete your 0.261 reference collection. Best Practices for Arcade Emulation Performance