OggConvert is a free and open-source transcoder for digital audio and video files of various types into the free Ogg Vorbis audio format, and the Theora, VP8 and Dirac video formats. Developed by Tristan Brindle
License: Open Source
Adobe Media Encoder CC is a professional-grade software with extensive format support and integration with Adobe products, making it ideal for users within the Adobe ecosystem. OggConvert, while being free and open-source, offers a more basic feature set suitable for casual users who need simple audio and video conversion.