RawrImReptar

omg it works!!!! After literally days of me trying to figure it out that was the issue. Thank you so much. But now how do i remove all the duplicates easily? When I look in the roms folder theres so many roms with duplicate with - and #. I had to right click and edit the launching to the rom with no - and #

Hmm...I’ll have to check when I get home from work. But I believe there are duplicate files because of different regions. On mameui64 i could load the game in Japanese and etc. from watching the tutorial video, ETA Prime imported the roms and change region from North America to World.

Yes iv tried merge so i thought spilt would work. I followed that video step by step. I waited like 10 hours for to download all the pictures and videos when imported. When I use mameui64 on its own i can play all the games. its only when i tried using launchbox some games work and some games give me unknown system.

Iv done all of those and still getting the same error. Uknown system ?

Hmm i downloaded the .220 software for my .220 rom set is still getting the same error. "unknown sofware" I even tried taking the mame.ini to the root of the folder and still no luck

Ahhh shoot i didnt know it it had to be the same...I just assumed the latest software would work with any rom

No my mame is the latest .227 but my rom set is .220 split

My MameUI64 can load all my mame games perfectly. But when I use launch box and use MameUI64 emulator not all my games work....Some games run just fine and the ones that doesnt give me a "unknown system"