public static void saveChanges(){
		     try { 
		    	 OutputStream os = new FileOutputStream(getDataFile());
		    	 NBTTagCompound nbc = new NBTTagCompound();
		    	  
		    	 nbc.setTag("something1", mines);
		    	 nbc.setTag("something2",ublocks);
		    	 
		    	 CompressedStreamTools.writeCompressed(nbc, os);
		    	 
		     } catch (Exception ex) {
		    	 
		     }
	  }