This format was created for online broadcasting. Opus is an audio codec for compression used on the Internet in real-time mode. Employed by programs such as Skype and Mozilla. Mostly used in interactive applications. The advantages of Opus are high audio quality and good compression. It works only on devices powered by Windows. Opus files can be converted to similar extensions.

mp2

MPEG-1 Audio Layer II

This is a standardized format for digital television and radio. MPEG-1 Audio Layer II is compatible with a variety of media players. This format is used exclusively for storing audio information. It is employed in satellite broadcasting. The MPEG-1 Audio Layer II format was originally created in the 1990s. The popular mp3 format is one of its components. Its greatest advantage lies in the fact that the files do not lose the high sound quality upon compression. Before the emergence of DVDs, this format was used for compact discs.