diff --git a/brouter-routing-app/src/main/java/btools/routingapp/BRouterActivity.java b/brouter-routing-app/src/main/java/btools/routingapp/BRouterActivity.java
index 6358fdd..1e358c6 100644
--- a/brouter-routing-app/src/main/java/btools/routingapp/BRouterActivity.java
+++ b/brouter-routing-app/src/main/java/btools/routingapp/BRouterActivity.java
@@ -331,12 +331,16 @@ public class BRouterActivity  extends Activity implements OnInitListener {
       ArrayList<Long> dirFreeSizes = new ArrayList<Long>();
       for( String d : items )
       {
+       try
+       {
         StatFs stat = new StatFs(d);
         long size = (long)stat.getAvailableBlocks()*stat.getBlockSize();
         int idx = 0;
         while ( idx < availableBasedirs.size() && dirFreeSizes.get(idx).longValue() > size ) idx++;
         availableBasedirs.add( idx, d );
         dirFreeSizes.add( idx, Long.valueOf( size ) );
+       }
+       catch( Exception e ) { /* ignore */ }
       }
       
       basedirOptions= new String[items.size() + 1];
diff --git a/brouter-routing-app/src/main/java/btools/routingapp/BRouterView.java b/brouter-routing-app/src/main/java/btools/routingapp/BRouterView.java
index ab82c32..b7014e1 100644
--- a/brouter-routing-app/src/main/java/btools/routingapp/BRouterView.java
+++ b/brouter-routing-app/src/main/java/btools/routingapp/BRouterView.java
@@ -794,7 +794,7 @@ private long startTime = 0L;
          if ( line.contains( "/dev/block/vold" ) )
          {
            isExternalDir = true;
-           String[] vetos = new String[] { "/mnt/secure", "/mnt/asec", "/mnt/obb", "/dev/mapper", "tmpfs" };
+           String[] vetos = new String[] { "/mnt/secure", "/mnt/asec", "/mnt/obb", "/dev/mapper", "tmpfs", "/mnt/media_rw" };
            for( String v: vetos )
            {
              if ( d.indexOf( v ) >= 0 )