Ever need to change the format of a video? Ever need to compress a video? I have found a free and powerful piece of software. Miro Video Converter does an outstanding job converting videos. I have used it frequently to convert movies to .mp4 format and also to convert audio files to .mp3 format.
Open Miro Video Converter and drag your movie file or audio file into the middle section. Choose the format for the conversion. Click convert. It will convert the file for you and put it back in the folder next to the original. Easy. Download a copy and give it a shot.