MAME treats this file as a . This means it is not stored within the individual game ROM folders but must be placed in a specific shared zip file within your roms directory. Location Requirements

In MAME terms, when you load "Gate of Doom" (ROM set name: gatedoom or darkseal ), the emulator checks for a list of known SHA-1 or CRC32 hashes. If dl-1425.bin is missing or corrupt, MAME refuses to run the game to prevent crashes or emulation inaccuracies.