Maybe you have download a movie and you cannot play it on your computer? I think that many of us have had this kind of issue and not long ago i had exactly this problem and i was trying to figure out how i can solve it and to even make things worse i have an mac so it is not that easy to find good working programs as it is for windows. I needed to convert flv to mp4 for mac and i solved this with an video editing software that i tested and it did the job perfectly. So i didn’t have to go out and buy anything and i probably saved a lot of money this way. I am an student so every dollar is very important for me and trust me it makes a difference when you can save some money like this.