You might have been confused by MPEG4 vs MP4 .
Is MP4 the short form for MPEG 4?
At first glance it seems so, but it’s not.
Here’s the explanation.
MPEG4 is a video codec.
A codec is the short form for COmpression and DECompression.
When you have a video with a large file size you may use the MPEG4 codec to compress it to a smaller size.
In this way, you can enable playback of it in supported devices, apart from saving on storage space.
MP4, on the other hand doesn’t compress a video file. It’s just a storage or container format.
A video container is where you can store various multimedia files that enhances the experience of viewing a video.
So, within MP4 you can store audio, video, subtitles and even images.
All this can be managed in a single file.
MPEG4 is for Compression.
MP4 is for Storage (Container).
To understand MPEG4 vs MP4 better please read the introductory articles below.