File extension.MP3 Category Description MP3 is the most popular audio file type based on MPEG-1 Layer III compression. Its lossy algorithm was developed in 1991. MP3 codes the sound almost with the same quality, as CD (16-bit stereo), providing compression in size 1 to 10 from the original WAF or AIFF tracks. The quality of MP3 seriously depends on the bitrate.
It can be 128 - 256 kbps. Higher bitrates are also supported, but they seriously increase the file size. It is supported by all modern hard- and software players. Associated programs RealOne WinAmp Windows Media Player iTunes Developed by Fraunhofer Institute MIME type audio/mpeg audio/MPA audio/mpa-robust Useful links. File extension.MP4 Category Description MP4 files can contain video and sound data. It is a file container that supports different multimedia content types such as multiple audio streams, subtitles, 2D and 3D image frames. MP4 is also used for streaming media services (online or digital TV).
This file type supports the control of transmission speeds for media signal, as well as correcting corrupted frames. Thanks to comparatively low system requirements, MP4 is now the most popular container type for sharing media. Associated programs Apple QuickTime Player Apple iTunes Microsoft Windows Media Player VideoLAN VLC Media Player Developed by Moving Picture Experts Group MIME type Useful links.
Convert MP4 to MP3 and many other media formats. No registration or software installation needed. Simple to use, fast and totally free! MP4, which stands for MPEG-4 Part 14, is a popular media format that is used to store video and audio data as well as subtitles and images. While MP4 is based on Appleās QuickTime MOV format, it adds support for other MPEG features.