diff --git a/mednafen/cdrom/CDAccess_Image.cpp b/mednafen/cdrom/CDAccess_Image.cpp
index 7f6c4de..5fb1dcc 100644
--- a/mednafen/cdrom/CDAccess_Image.cpp
+++ b/mednafen/cdrom/CDAccess_Image.cpp
@@ -670,7 +670,13 @@ bool CDAccess_Image::ImageOpen(const std::string& path, bool image_memcache)
                active_track = -1;
             }
 
-            std::string efn = MDFN_EvalFIP(base_dir, args[0]);
+            std::string efn;
+
+            if(args[0].find("cdrom://") == std::string::npos)
+               efn = MDFN_EvalFIP(base_dir, args[0]);
+            else
+               efn = args[0];
+
             TmpTrack.fp = new FileStream(efn.c_str(), MODE_READ);
             TmpTrack.FirstFileInstance = 1;