4Musics Multiformat Converter 4.0 is a poweful tool that specializes in converting among the most popular sound formats, working in WAV, MP3, WMA and OGG (probably the most used and sensible to convert to and from).It is also recommended to use this program when you get a determined format (OGG, for example) and your player isn`t able to read it. In these cases you can change the format (ie to MP3) and then play it in your player.