diff --git a/arm9/source/filesys/fsperm.c b/arm9/source/filesys/fsperm.c
index 16be16b..9a9af05 100644
--- a/arm9/source/filesys/fsperm.c
+++ b/arm9/source/filesys/fsperm.c
@@ -24,6 +24,16 @@ bool CheckWritePermissions(const char* path) {
     int drvtype = DriveType(path);
     u32 perm;
     
+    // create a standardized path string
+    char path_f[256];
+    char* p = (char*) path;
+    path_f[255] = '\0';
+    for (u32 i = 0; i < 255; i++) {
+        path_f[i] = *(p++);
+        while ((path_f[i] == '/') && (*p == '/')) p++;
+        if (!path_f[i]) break;
+    }
+
     // check mounted image write permissions
     if ((drvtype & DRV_IMAGE) && !CheckWritePermissions(GetMountPath()))
         return false; // endless loop when mounted file inside image, but not possible
@@ -43,11 +53,11 @@ bool CheckWritePermissions(const char* path) {
             const char* path_lvl2[] = { PATH_SYS_LVL2 };
             const char* path_lvl1[] = { PATH_SYS_LVL1 };
             for (u32 i = 0; (i < sizeof(path_lvl3) / sizeof(char*)) && (lvl < 3); i++)
-                if (strncasecmp(path, path_lvl3[i], 256) == 0) lvl = 3;
+                if (strncasecmp(path_f, path_lvl3[i], 256) == 0) lvl = 3;
             for (u32 i = 0; (i < sizeof(path_lvl2) / sizeof(char*)) && (lvl < 2); i++)
-                if (strncasecmp(path, path_lvl2[i], 256) == 0) lvl = 2;
+                if (strncasecmp(path_f, path_lvl2[i], 256) == 0) lvl = 2;
             for (u32 i = 0; (i < sizeof(path_lvl1) / sizeof(char*)) && (lvl < 1); i++)
-                if (strncasecmp(path, path_lvl1[i], 256) == 0) lvl = 1;
+                if (strncasecmp(path_f, path_lvl1[i], 256) == 0) lvl = 1;
         }
         if (!IS_UNLOCKED) { // changed SysNAND permission levels on locked systems
             if ((drvtype & DRV_CTRNAND) || (lvl == 2)) lvl = 3;
@@ -60,7 +70,7 @@ bool CheckWritePermissions(const char* path) {
         if (drvtype & DRV_VIRTUAL) { // check for paths
             const char* path_lvl1[] = { PATH_EMU_LVL1 };
             for (u32 i = 0; (i < sizeof(path_lvl1) / sizeof(char*)) && (lvl < 1); i++)
-                if (strncasecmp(path, path_lvl1[i], 256) == 0) lvl = 1;
+                if (strncasecmp(path_f, path_lvl1[i], 256) == 0) lvl = 1;
         }
         perm = perms[lvl];
         snprintf(area_name, 16, "EmuNAND (lvl%lu)", lvl);
@@ -82,7 +92,7 @@ bool CheckWritePermissions(const char* path) {
     } else if (drvtype & DRV_MEMORY) {
         perm = PERM_MEMORY;
         snprintf(area_name, 16, "memory areas");
-    } else if (strncasecmp(path, "0:/Nintendo 3DS", 15) == 0) { // this check could be better
+    } else if (strncasecmp(path_f, "0:/Nintendo 3DS", 15) == 0) { // this check could be better
         perm = PERM_SDDATA;
         snprintf(area_name, 16, "SD system data");
     } else if (drvtype & DRV_SDCARD) {
diff --git a/arm9/source/filesys/sddata.c b/arm9/source/filesys/sddata.c
index 634975d..0bdef29 100644
--- a/arm9/source/filesys/sddata.c
+++ b/arm9/source/filesys/sddata.c
@@ -34,8 +34,9 @@ int alias_num (const TCHAR* path) {
 
 void dealias_path (TCHAR* alias, const TCHAR* path) {
     int num = alias_num(path);
+    u32 p_offs = (path[2] == '/' && ((path[3] == '/') || (path[3] == '\0'))) ? 3 : 2;
     if (num >= 0) // set alias (alias is assumed to be 256 byte)
-        snprintf(alias, 256, "%s%s", alias_path[num], path + 2);
+        snprintf(alias, 256, "%s%s", alias_path[num], path + p_offs);
     else strncpy(alias, path, 256);
 }
 
diff --git a/arm9/source/utils/nandcmac.c b/arm9/source/utils/nandcmac.c
index cc0292e..1e617f5 100644
--- a/arm9/source/utils/nandcmac.c
+++ b/arm9/source/utils/nandcmac.c
@@ -387,7 +387,7 @@ u32 CheckFixCmdCmac(const char* path, bool fix) {
         }
     }
 
-    // if fixing is enable, write back cmd file
+    // if fixing is enabled, write back cmd file
     if (fix && fixed && CheckWritePermissions(path) &&
         (fvx_qwrite(path, cmd_data, 0, cmd_size, NULL) != FR_OK)) {
         free(cmd_data);
@@ -432,7 +432,20 @@ u32 RecursiveFixFileCmacWorker(char* path) {
 }
 
 u32 RecursiveFixFileCmac(const char* path) {
-    char lpath[256] = { 0 };
-    strncpy(lpath, path, 255);
+    // create a fixed up local path
+    // (this is highly path sensitive)
+    char lpath[256]; 
+    char* p = (char*) path;
+    lpath[255] = '\0'; 
+    for (u32 i = 0; i < 255; i++) {
+        lpath[i] = *(p++);
+        while ((lpath[i] == '/') && (*p == '/')) p++;
+        if (!lpath[i]) {
+            if (i && (lpath[i-1] == '/'))
+                lpath[i-1] = '\0';
+            break;
+        }
+    }
+
     return RecursiveFixFileCmacWorker(lpath);
 }