Index of media container formats (file types) mp3 extension, even though their containers are just MPEG. These files use the audio/mp3 MIME type and the. A good example of this is the MP3 audio file, which is in fact an MPEG-1 container with a single audio track encoded using MPEG-1 Audio Layer III encoding.
In other cases, a particular codec, stored in a certain container type, is so ubiquitous that the pairing is treated in a unique fashion. But it's still actually just an Ogg file. For example, an Ogg file with only an Opus audio track is sometimes referred to as an Opus file, and might even have the extension. Not all of these are broadly supported by browsers, however some combinations of container and codec are sometimes given their own file extensions and MIME types as a matter of convenience, or because of their ubiquity. However, you may also encounter MP3, Ogg, WebM, AVI, and other formats. The MIME types and extensions for each are listed.The most commonly used containers for media on the web are probably MPEG-4 (MP4), QuickTime Movie (MOV), and the Wavefile Audio File Format (WAV). Some support only audio while others support both audio and video. While there are a vast number of media container formats, the ones listed below are the ones you are most likely to encounter.
