It’s an old question and there is quite a lot of discussion about it in the forum … just search a little bit.
For instance …
Please, guys, it’s quite bored to repeat the same song … before asking something, you should search a little bit the forum archives. It’s easy … just write some keywords in the search box (magnifying glass in the topbar!!) and push ENTER. It takes less time than writing a question and you get instant result!! A kind of magic!! 
Regards