I honestly do not understand what you are asking here, but I'll give it a go.
arcadefan wrote: ↑Thu Oct 26, 2023 9:11 am
what best emulator in interface for mame 0.260?
You mean what 'front-end' is best ? Well, everyone has their own favorite, but even mame's own build-in interface is just fine.
arcadefan wrote: ↑Thu Oct 26, 2023 9:11 am
necessary CHD? CHD500GB
"CHD's" are only needed for some games. Check which specific games you like, and if they need a CHD.
arcadefan wrote: ↑Thu Oct 26, 2023 9:11 am
i like roms 80s 90s
You can use this website to search for specific machines/games, like arcade-only, the year/range they were released, if they do/dont need a CHD, and if they are working in the latest mame release. Perhaps that will help you find games that you might be interested in, and get those.
http://adb.arcadeitalia.net/lista_mame.php