The above method is helping you convert WEM to OGG, and if you want to convert OGG to MP3, the most popular audio format, both online and offline methods can help you. However, in my experience, I highly recommend you to use a third-party software to convert OGG to MP3 offline, for you don’t need to worry about ads or Internet lagging and buffering. Here, Free HD Video Converter Factory is the most reliable tool I would like introduce to you. It is a totally free and experienced audio and video converter, capable of converting audio/videos to over 500 formats and devices, like converting FLAC to MP3, converting MP2 to MP3, converting AIFC to MP3, etc. Just give Free HD a free try and see how easy it is to convert OGG to MP3.