One-way OGG to MP3 converting at high converting speed. One of the featuers of Alt OGG to MP3 Converter is that it works from the right click menu on a file. Simply right click on the OGG, select "Convert to MP3." Ogg Vorbis is a fully open, non-proprietary, patent-and-royalty-free, general-purpose compressed audio format for mid to high quality (8kHz-48.0kHz, 16+ bit, polyphonic) audio and music at fixed and variable bitrates from 16 to 128 kbps/channel. Vorbis is the first of a planned family of Ogg multimedia coding formats being developed as part of Xiph.org's Ogg multimedia project.