diff --git a/libretro/libretro.c b/libretro/libretro.c
index a828769..c632d64 100644
--- a/libretro/libretro.c
+++ b/libretro/libretro.c
@@ -1261,7 +1261,7 @@ static void check_variables(bool first_run)
   bool update_frameskip     = false;
   struct retro_variable var = {0};
 
-  var.key = "genesis_plus_gx_bram";
+  var.key = "genesis_plus_gx_system_bram";
   environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var);
   {
 #if defined(_WIN32)
@@ -1284,6 +1284,25 @@ static void check_variables(bool first_run)
    }
   }
 
+  var.key = "genesis_plus_gx_cart_bram";
+  environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var);
+  {
+#if defined(_WIN32)
+    char slash = '\\';
+#else
+    char slash = '/';
+#endif
+
+   if (!var.value || !strcmp(var.value, "per cart"))
+   {
+     snprintf(CART_BRAM, sizeof(CART_BRAM), "%s%ccart.brm", save_dir, slash);
+   }
+   else
+   {
+     snprintf(CART_BRAM, sizeof(CART_BRAM), "%s%c%s_cart.brm", save_dir, slash, g_rom_name);
+   }
+  }
+
   var.key = "genesis_plus_gx_system_hw";
   environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var);
   {
@@ -3182,7 +3201,6 @@ bool retro_load_game(const struct retro_game_info *info)
    snprintf(CD_BIOS_EU, sizeof(CD_BIOS_EU), "%s%cbios_CD_E.bin", dir, slash);
    snprintf(CD_BIOS_US, sizeof(CD_BIOS_US), "%s%cbios_CD_U.bin", dir, slash);
    snprintf(CD_BIOS_JP, sizeof(CD_BIOS_JP), "%s%cbios_CD_J.bin", dir, slash);
-   snprintf(CART_BRAM, sizeof(CART_BRAM), "%s%ccart.brm", save_dir, slash);
 
    check_variables(true);
 
diff --git a/libretro/libretro_core_options.h b/libretro/libretro_core_options.h
index c843955..bbe5a6c 100644
--- a/libretro/libretro_core_options.h
+++ b/libretro/libretro_core_options.h
@@ -146,7 +146,7 @@ struct retro_core_option_v2_definition option_defs_us[] = {
       "disabled"
    },
    {
-      "genesis_plus_gx_bram",
+      "genesis_plus_gx_system_bram",
       "CD System BRAM",
       NULL,
       "When running Sega CD content, specifies whether to share a single save file between all games from a specific region (Per-BIOS) or to create a separate save file for each game (Per-Game). Note that the Sega CD has limited internal storage, sufficient only for a handful of titles. To avoid running out of space, the 'Per-Game' setting is recommended.",
@@ -159,6 +159,20 @@ struct retro_core_option_v2_definition option_defs_us[] = {
       },
       "per bios"
    },
+   {
+      "genesis_plus_gx_cart_bram",
+      "CD Backup Cart BRAM",
+      NULL,
+      "When running Sega CD content, specifies whether to share a single backup ram cart for all games (Per-Cart) or to create a separate backup ram cart for each game (Per-Game).",
+      NULL,
+      "system",
+      {
+         { "per cart", "Per-Cart" },
+         { "per game", "Per-Game" },
+         { NULL, NULL },
+      },
+      "per cart"
+   },
    {
       "genesis_plus_gx_add_on",
       "CD add-on (MD mode) (Requires Restart)",