At now time none. As the result of encoding we are receiving the media file. One of the important characteristics of this file is its size in bytes. That is why there are exists more effective compression technologies, such as WMA, for example. It could be checked, using professional waveform editor with spectrum analyzer in it. Simply encode the same source WAV file to the mp3 and wma formats with constant bitrate, for example 160 Kbits/second. The reopen these files and see the spectrum analyzes graphics. The Windows Media Audio at this bitrate will show the best results. Therefore, the MP3 standard is the most popular in the world, and it supporting in all absolutely new portable flash or CD, DVD player, home theatres systems and so on, shows to us that the mp3 file format is the most attractive and compatible media format.
