larsherbaut Posted December 28, 2018 Share Posted December 28, 2018 (edited) Hi! I stumbled upon a problem with the NAOMI and NAOMI 2 system. I tried different emulators and each one has his own problems. Can't figure it out. If hope to get one of these emulators to work. First Emulator: DEMUL v0.7 alpha I can get DEMUL to launch through Launchbox but it give me the error:"Unable to find 'epr-21576d.ic27' in romset naomi". But that file is located in the directory that I assigned to the games and roms. The type of game rom files are *.zip and contains type *.ic* files. Maybe I'm using incompatibele rom files? In the settings menu I tried already the 3 different rom options (gdrimage, gdrCHD, gdrDEMUL). What's the correct one with these type of files? Command lines (-run=naomi -rom=) are put in the right place, Correct boxes are checked. Note: I also use DEMUL for Sammy Atomiswave and that works perfect with launchbox. Once you put in the proper command line (-run=awave -rom=) and check the right boxes. Second Emulator: RetroArch 1.7.5 with reicast core Starting the game in RetroArch through Launchbox works, the game starts but I get black screen. I know the game is in running the background because I hear sound when I use the controls. I used the epr-21576g.ic27 (2048kB) that I renamed and put in the ...\system\dc\ folder. Help Thx a bunch! Edited December 28, 2018 by larsherbaut Quote Link to comment Share on other sites More sharing options...
Retro808 Posted December 28, 2018 Share Posted December 28, 2018 That epr file I am sure you know is a bios file. Demul I believe uses the mame bios files. I know the 07 build does, not sure if the 07a does as well. If you have a full mame romset you can try and use the naomi.zip and naomi2.zip files from it. Just place the full naomi.zip and naomi2.zip files into the bios folder where you have demul pointed. Looks like maybe the bios file you have is not compatible. I cannot answer the question on the Riecast core as I do not use it. Never really messed with it much. Quote Link to comment Share on other sites More sharing options...
larsherbaut Posted December 28, 2018 Author Share Posted December 28, 2018 I shouldn't have unzipped the bios files! Zipped it seem to work! I'll do some more testing later. You're a genius! Thanks man!? Quote Link to comment Share on other sites More sharing options...
Retro808 Posted December 28, 2018 Share Posted December 28, 2018 Just now, larsherbaut said: I shouldn't have unzipped the bios files! Zipped it seem to work! I'll do some more testing later. You're a genius! Thanks man!? LOL...Glad you are sorted. Quote Link to comment Share on other sites More sharing options...
mohanned85 Posted November 7, 2019 Share Posted November 7, 2019 i got this sorted too thanks guy never new u needed them zipped Quote Link to comment Share on other sites More sharing options...
DOS76 Posted November 7, 2019 Share Posted November 7, 2019 yeah good rule to follow is if its for Arcade never unzip it. Quote Link to comment Share on other sites More sharing options...
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