diff --git a/platform/common/emu.c b/platform/common/emu.c
index 08ed27d8..8cd5e74c 100644
--- a/platform/common/emu.c
+++ b/platform/common/emu.c
@@ -210,6 +210,16 @@ static const char *find_bios(int *region, const char *cd_fname)
 		strcat(static_buff, ".zip");
 		f = fopen(static_buff, "rb");
 		if (f) break;
+
+		strcpy(static_buff, files[i]);
+		strcat(static_buff, ".bin");
+		f = fopen(static_buff, "rb");
+		if (f) break;
+
+		static_buff[strlen(static_buff) - 4] = 0;
+		strcat(static_buff, ".zip");
+		f = fopen(static_buff, "rb");
+		if (f) break;
 	}
 
 	if (f) {