Setup Mame - Mixed Roms

[cr4zeretro]

Hey Guys

 

I am new to launchbox and still finding my feet and need some assistance.

I have set up several emulators such as snes, sega etc, but I am having trouble opening mame roms.

I have over 4000 roms in one folder and I dont know what mame set they are part of.

I need the correct steps to import these roms into LB such as mame version to use etc.

Can someone please assist?

Thanks in advance

Chris

[JoeViking245]

8 minutes ago, cr4zeretro said:

I have over 4000 roms in one folder and I dont know what mame set they are part of.

There is no reasonable way to determine by just the ROMs what MAME revision they are from.  Assuming they even belong to a single set.

 

That said, I always contend, there's pretty much always a way.  Reasonable or otherwise.

The unreasonable method I've used in the past to narrow it down is to open one of the ROMs' zip file and compare the contents to, starting with the latest set and working backwards, the files in those sets.

You can see what files are supposed to be in the zip by going to http://adb.arcadeitalia.net/default.php, search for the ROM, scroll down to and expand Show romset files.  By default, it will show the most recent release.  Right below "Show romset files" (which now says "Hide romset files") is a dropdown box in which you can select previous releases.  Keep selecting previous release(s) until all the files shown match exactly to what you see in your zip file.  You can safely compare only the filenames without needing the verify the SHA1 numbers of each one.

Note, not all ROMs change between releases.  So when you pin down a release # for one of your ROMs, cross check several others in the same manner. Just to be sure.

[cr4zeretro]

Hey

 

Thanks for your reply

Most of my roms on retropie/retroarch on mame2003/2003+ core, i know that much. For some reason they still wont load if I select that core.

I am not sure if I am doing something wrong.

[JoeViking245]

10 minutes ago, cr4zeretro said:

For some reason they still wont load if I select that core.

I am not sure if I am doing something wrong.

If you can run the games directly from within RetroArch itself (or via the Command Line, or a batch file), you can launch them from LaunchBox.

Make sure you don't have "Extract ROMs" checked in the Associated Platforms section for that platform.

Beyond that advice, I have no idea. I have never used RA to launch Arcade games. Though I hear it is possible.