You may know Spotify, a digital music service that offers millions of songs for users all around the world. But do you know Spotify uses OGG Vorbis file format? In practice, this platform promises 320kpbs bitrate as "high-quality sound" to its Premium subscribers. OGG is known for its ability for streaming in multimedia, having images and texts being saved. Therefore, if you need to convert MP4 to OGG files, you can use a professional tool to help you do that with ease. This article will recommend 3 handy MP4 converters and teach you step by step.