diff --git a/BizHawk.MultiClient/MainForm.cs b/BizHawk.MultiClient/MainForm.cs
index 6d1289278f..40d40b773d 100644
--- a/BizHawk.MultiClient/MainForm.cs
+++ b/BizHawk.MultiClient/MainForm.cs
@@ -407,11 +407,11 @@ namespace BizHawk.MultiClient
 			target.SMS_ShowBG = Global.Config.SMSDispBG;
 			target.SMS_ShowOBJ = Global.Config.SMSDispOBJ;
 
-			target.PSX_FirmwaresPath = Global.Config.FirmwaresPath; // PathManager.MakeAbsolutePath(Global.Config.PathPSXFirmwares, "PSX");
+			target.PSX_FirmwaresPath = PathManager.MakeAbsolutePath(Global.Config.FirmwaresPath, ""); // PathManager.MakeAbsolutePath(Global.Config.PathPSXFirmwares, "PSX");
 
-			target.C64_FirmwaresPath = Global.Config.FirmwaresPath; // PathManager.MakeAbsolutePath(Global.Config.PathC64Firmwares, "C64");
+			target.C64_FirmwaresPath = PathManager.MakeAbsolutePath(Global.Config.FirmwaresPath, ""); // PathManager.MakeAbsolutePath(Global.Config.PathC64Firmwares, "C64");
 
-			target.SNES_FirmwaresPath = Global.Config.FirmwaresPath; // PathManager.MakeAbsolutePath(Global.Config.PathSNESFirmwares, "SNES");
+			target.SNES_FirmwaresPath = PathManager.MakeAbsolutePath(Global.Config.FirmwaresPath, ""); // PathManager.MakeAbsolutePath(Global.Config.PathSNESFirmwares, "SNES");
 			target.SNES_ShowBG1_0 = Global.Config.SNES_ShowBG1_0;
 			target.SNES_ShowBG1_1 = Global.Config.SNES_ShowBG1_1;
 			target.SNES_ShowBG2_0 = Global.Config.SNES_ShowBG2_0;
@@ -1885,7 +1885,7 @@ namespace BizHawk.MultiClient
 							case "PCE":
 							case "PCECD":
 								{
-									string biosPath = Path.Combine(Global.Config.FirmwaresPath, Global.Config.FilenamePCEBios); //PathManager.MakeAbsolutePath(Global.Config.PathPCEBios, "PCE");
+									string biosPath = PathManager.StandardFirmwareName(Global.Config.FilenamePCEBios); //PathManager.MakeAbsolutePath(Global.Config.PathPCEBios, "PCE");
 									if (File.Exists(biosPath) == false)
 									{
 										MessageBox.Show("PCE-CD System Card not found. Please check the BIOS path in Config->Paths->PC Engine.");
@@ -1972,7 +1972,7 @@ namespace BizHawk.MultiClient
 								break;
 							case "NES":
 								{
-									string biosPath = Path.Combine(Global.Config.FirmwaresPath, Global.Config.FilenameFDSBios);
+									string biosPath = PathManager.StandardFirmwareName(Global.Config.FilenameFDSBios);
 									byte[] bios = null;
 									if (File.Exists(biosPath))
 									{
@@ -2045,7 +2045,7 @@ namespace BizHawk.MultiClient
 									else
 									{
 										// todo: get these bioses into a gamedb?? then we could demand different filenames for different regions?
-										string sgbromPath = Path.Combine(Global.Config.FirmwaresPath, "sgb.sfc"); //Path.Combine(PathManager.MakeAbsolutePath(Global.Config.PathSNESFirmwares, "SNES"), "sgb.sfc");
+										string sgbromPath = PathManager.StandardFirmwareName("sgb.sfc"); //Path.Combine(PathManager.MakeAbsolutePath(Global.Config.PathSNESFirmwares, "SNES"), "sgb.sfc");
 										byte[] sgbrom = null;
 										try
 										{
@@ -2081,7 +2081,7 @@ namespace BizHawk.MultiClient
 								}
 								break;
 							case "Coleco":
-								string colbiosPath = Path.Combine(Global.Config.FirmwaresPath, Global.Config.FilenameCOLBios);
+								string colbiosPath = PathManager.StandardFirmwareName(Global.Config.FilenameCOLBios);
 								FileInfo colfile = new FileInfo(colbiosPath);
 								if (!colfile.Exists)
 								{
@@ -2097,11 +2097,11 @@ namespace BizHawk.MultiClient
 							case "INTV":
 								{
 									Intellivision intv = new Intellivision(nextComm, game, rom.RomData);
-									string eromPath = Path.Combine(Global.Config.FirmwaresPath, Global.Config.FilenameINTVEROM);
+									string eromPath = PathManager.StandardFirmwareName(Global.Config.FilenameINTVEROM);
 									if (!File.Exists(eromPath))
 										throw new InvalidOperationException("Specified EROM path does not exist:\n\n" + eromPath);
 									intv.LoadExecutiveRom(eromPath);
-									string gromPath = Path.Combine(Global.Config.FirmwaresPath, Global.Config.FilenameINTVGROM);
+									string gromPath = PathManager.StandardFirmwareName(Global.Config.FilenameINTVGROM);
 									if (!File.Exists(gromPath))
 										throw new InvalidOperationException("Specified GROM path does not exist:\n\n" + gromPath);
 									intv.LoadGraphicsRom(gromPath);
@@ -2109,9 +2109,9 @@ namespace BizHawk.MultiClient
 								}
 								break;
 							case "A78":
-								string ntsc_biospath = Path.Combine(Global.Config.FirmwaresPath, Global.Config.FilenameA78NTSCBios);
-								string pal_biospath = Path.Combine(Global.Config.FirmwaresPath, Global.Config.FilenameA78PALBios);
-								string hsbiospath = Path.Combine(Global.Config.FirmwaresPath, Global.Config.FilenameA78HSCBios);
+								string ntsc_biospath = PathManager.StandardFirmwareName(Global.Config.FilenameA78NTSCBios);
+								string pal_biospath = PathManager.StandardFirmwareName(Global.Config.FilenameA78PALBios);
+								string hsbiospath = PathManager.StandardFirmwareName(Global.Config.FilenameA78HSCBios);
 
 								FileInfo ntscfile = new FileInfo(ntsc_biospath);
 								FileInfo palfile = new FileInfo(pal_biospath);
@@ -2162,7 +2162,7 @@ namespace BizHawk.MultiClient
 							case "GBA":
 								if (INTERIM)
 								{
-									string gbabiospath = Path.Combine(Global.Config.FirmwaresPath, Global.Config.FilenameGBABIOS);
+									string gbabiospath = PathManager.StandardFirmwareName(Global.Config.FilenameGBABIOS);
 									byte[] gbabios = null;
 
 									if (File.Exists(gbabiospath))
diff --git a/BizHawk.MultiClient/config/PathManager.cs b/BizHawk.MultiClient/config/PathManager.cs
index 1dd7e08c3a..ec582585c8 100644
--- a/BizHawk.MultiClient/config/PathManager.cs
+++ b/BizHawk.MultiClient/config/PathManager.cs
@@ -108,6 +108,11 @@ namespace BizHawk.MultiClient
 			}
 		}
 
+		public static string StandardFirmwareName(string name)
+		{
+			return Path.Combine(MakeAbsolutePath(Global.Config.FirmwaresPath, ""), name);
+		}
+
 		public static string MakeAbsolutePath(string path, string system)
 		{
 			//This function translates relative path and special identifiers in absolute paths