Silentnight

I've just fixed the issue testing something before I nuked the whole thing. In LaunchBox the Roms must be in Mame's own Rom directory. To be crystal clear this means you MUST use the "Rom" directory in the main installation folder with the Mame Exe. So if you have Roms on a separate hardrive etc, you will not be able to use LaunchBox. Certainly don't use the copy Roms into LaunchBox's own rom folder, this also won't work. This wasn't the case when I used LaunchBox over a year ago, so it must be something conflicting with the current build of windows 10. I'd do a sticky post about this for your current build (7.10) somewhere as I found this glitch by chance and it's not an obvious fix. I've never used Mame's own Rom directory just for storage reasons really.

Can you confirm what version of windows you are using please Neil?

I've used Mameui 64 and normal recent build Mame without UI. Both have the Rom path correctly set and will launch Roms with no issue via their own Exe. LaunchBox has the same problem with each version of Mame. Rom not found. When I was doing my testing I trawled this forum as well as YouTube to check for any small settings errors, but I'm fairly sure this is a problem with LaunchBox and perhaps with an up to date windows 10* creators. As again, I don't seem to be the only one, I think this may be an un-install for me for now as this has took the better part of my Sunday away.

Yes no dice sadly, same result.

I've tried that. I shall try again now though just to be sure.

This is what I see without fail upon trying to launch a rom

I've checked through comments for various settings, none seem to change/remedy the issue sadly. These are the default settings from a fresh install (bar me setting the application path). I've tried Mame on c drive (not programs) and E to no effect. Associated tab just has arcade ticked, nothing else.

Hi guys, noticed a few have said similair either with Mame or another emulator in LaunchBox, but the current build simply will not launch roms. In Mame its self (as others have said) everything is fine and titles launch. When you try in LaunchBox however (after double and triple checking all your paths) you attempt to launch and a Mame window states "Rom files missing". I've spent a good few hours on this. Tried multiple installs, and I'm keeping things simple with only trying to get a handful of roms to load. I've used other front end programs in the past, and used Mame on and off for a good number of years now so I'm not in the dark here with my testing. I'm on windows 10 creators update if that's any help, and my Direct x etc is all fine and present. I think the smoking gun here is a number of people stating the same thing, I think it's beyond user error guys. If you want any further info on my system or how I have this set up feel free to ask.