A rom manager checks the file's crc to make sure you have the correct files. It checks against the dats. It's purpose is for rom management. It seems your roms are decrypted and mine or not but i would just try with the known commandline for naomi to test and see how things go. I don't run any emulators but demul is the one that is recommended by my known sources. Try the following: demul.exe -run=naomi -rom="[ROMPATH]\[ROMFILE]" This is untested for your type of roms since I don't have them that way. But we'll still figure out. Please report back.
I would run the files through a rom manager like clrmame pro against the latest dat to confirm your roms. I'm not aware of the roms having a dat extension. I could be wrong. As far as command-line:
Before this particular emulator didn't like quotes. Maybe it works now with them? I can't test since I don't have the current version of this emulator. If it works now then that would explain the spaces in a folder. Spaces in folders are fine as long as you embed the path in quotes from the command-line which this emulator didn't do before. Would need confirmation with this particular version. Wait!?! Do you mean the new version of GameEx or Project64?
gameex.ini file is found in the CONFIG folder and log.txt file is found in the LOG folder of your GameEx install. Please read the How To Ask For Help thread as these answer how to provide the files we ask for when troubleshooting.
LOL. Right. Still best to use send keys for setting the option and then to set to full screen. Just less work all together until they make an option in the emulator itself.
Can write a batch file for those games or can just create an emulator group for just those games. Also you can do alt+v (for view) and then r (for rotation) then your down's and enter. Just a more clean way of doing it.
For now, maybe can use sendkeys to send the correct combo in windowed mode and then set fullscreen. Just a thought till it's implemented. This can also be easily accomplished with a script but best to do within GameEx.