Musictime In Indonesia
Use a tool like clrmamepro or ROMVault to check SHA-1/CRC32 hashes against known good dumps (Datfiles available from the MAME project).
If you attempt to load a Naomi game (e.g., Capcom vs. SNK 2 ) without the correct present in your emulator's data or roms folder, you will typically see one of the following error messages: Bios Dc Naomi.zip