WAV audio files can be as large as 4GB, and even smaller files need a lot of space. While WAV format files are of excellent quality, not all users can afford to store them in their devices.

If you are unable to open an MP4 file on our media player, try changing the video format. There are many good video converters available on the internet that can help you convert your MP4 to MP3, AVI, ...

Digital sound is nothing more than numbers. What separates one container from another is how those numbers are packed, how much data (if any) is thrown away, and which devices understand the result.