I have just bought sprint blackberry 8830 because I just love its features and specifications. The RIM BlackBerry 8830 is a powerful voice as well as messaging tool that offers worldwide roaming and great performance. I have some flv format songs and I want to play them on my phone. So I have installed .flv app in my phone. Now I am trying to play these songs, it says, none of these files are supported by my phone. Why it is showing this message if I am using.flv app in my phone?