Audio container formats

1. Is MP3 a container format?
2. Is MP4 a container or codec?
3. What is container based file format?

Is MP3 a container format?

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.

Is MP4 a container or codec?

MP4 is a multimedia container for video, audio, and data, including things like subtitles and still images. Make sure you don't confuse MPEG 4 and MPEG 4 Audio. MPEG 4 has the file extension .

What is container based file format?

A container format (informally, sometimes called a wrapper) or metafile is a file format that allows multiple data streams to be embedded into a single file, usually along with metadata for identifying and further detailing those streams.