If you love watching videos, you must have heard the terms of MPEG-2 and MPEG-4. Both are digital video formats, but there is a slight difference between them. Extensions such as MPG, MPEG and M2V are used by MPEG-2. On the other hand, the MPEG-4 files are typically found in MP4 format.
Usually, these two formats are known for videos files. But the reality is a little different. You have heard about MP3 – a format for audio files. The MP3 files are also contained within MPEG-2. There is literally a lot of different between these two containers.