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Demul Naomi missing file


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Not sure how you downloaded your roms, but if you get your Naomi roms from the full Mame romset you will not be missing any files. We typically recommend this route over downloading individual roms from random sites to prevent this type of issue.

That rom in the latest mame sets has the file you are missing.

Screen Shot 2021-08-20 at 10.03.55 AM.png

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6 minutes ago, Fidgety said:


Not sure what you are trying to show there, just cause the zip has the correct name it doesnt mean the the files in that zip are correct. You are trying to use a old rom that is no longer compatible, you need newer rom files like @Retro808 already suggested. You cant just grab old MAME roms and expect them to work with current emulators, thats just not how MAME works.

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1 hour ago, Fidgety said:

Now im getting an error 01... i really dont know what im doing wrong

Do you have the following?

- In Demul > Config > Plugins and Paths, add the paths to your (naomi) roms and (naomi) bioses.


- In LaunchBox > Tools > Manage Emulators > Demul > Associated Platforms tab, add your Sega Naomi platform with the command-line parameters   -run=naomi -rom=



Edited by Koroth
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