MP4 is an abbreviation for MPEG-4 Part 14. It can also be called MPEG-4 AVC. In this case, the abbreviation AVC (Advanced Video Coding) is an advanced video encoding. By the name of the format, it is easy to guess that it is necessary for working with video files. The format was first proposed in 1998. Since then, MP4 is considered one of the most common file formats used to store and transmit multimedia. MP4 is a container format that provides the ability to combine audio, video, subtitles and pictures in one file. It is also suitable for posting rich content. Say three-dimensional graphics, menus and interactive features. There are many portable players and other devices that play MP4. For this, a PC or laptop is also quite suitable. The MP4 format is a robust application that needs relatively low performance. And therefore, users could use such a tool for their own purposes. This tool has found wide application, as the technology for the production of more and more powerful devices, both portable and desktop with a large hard drive capacity, is constantly evolving. Due to the fact that the speeds of various types of connections to the global network are increasing, MP4 has become more affordable. It acts like the MP3 format, although it is more complex. The format compresses files and remains high-quality.
MP3 is the most common music (sound) file format. This format was developed by Fraunhofer IIS and Thomson. This format for storing and transmitting music (sound) files in digital form uses signal compression technology. That is why, unlike the previously widespread WAV format, MP3 files (full name - MPEG Audio Layer-3) are much smaller in size, and their sound quality is much higher. The MP3 format was one of the first and most successful sound compression methods. One of the important characteristics of this process is the degree of compression, that is, how much data is transferred per unit of time. Standard MP3 encoding is from 64 to 320 kb / s.