I use VLC and VLC alone. It can play almost anything, and those that it cannot, it's easy for it to install codecs. So next time it already can. Also it's free and has a high maximum volume of up to 200%. Isn't it a good news to hear. It's also easy and simple to use especially its interface unlike the rest that I've tried like the Windows media player or even the iTunes. I simply think that VLC is the best.