Everything You Need To Know About File Extensions
Descriptions. Workarounds. Issues

File Extension MP4

MPEG-4 Part 14, formally ISO/IEC 14496-14:2003, is a multimedia container format standard specified as a part of MPEG-4. It is most commonly used to store digital audio and digital video streams, especially those defined by MPEG, but can also be used to store other data such as subtitles and still images. Like most modern container formats, MPEG-4 Part 14 allows streaming over the Internet. The official filename extension for MPEG-4 Part 14 files is .mp4, thus the container format is often referred to simply as MP4.

The existence of two different file extensions for naming audio-only MP4 files has been a source of confusion among users and multimedia playback software. Since MPEG-4 Part 14 is a container format, MPEG-4 files may contain any number of audio, video, and even subtitle streams, making it impossible to determine the type of streams in an MPEG-4 file based on its filename extension alone. In response, Apple Inc. started using and popularizing the .m4a file extension. Software capable of audio/video playback should open MP4 files as well as M4A files, as would be expected, as there are no file format differences between the two. Most software capable of creating MPEG-4 audio will allow the user to choose the filename extension of the created MPEG-4 files.

We hope you found this description of File Extension MP4 useful.

• We also created an article for you which step by step describes how to open any file extension on your computer.

  This article will teach you several simple methods which will allow you to figure out what is stored inside the file.

  Read an article on how to open any file extension

• Find more information about file extension and other file problems in File Extension Knowledge Base

• Also if you find an application on the web which claims to open your file make sure to scan it for viruses

  It is a very popular trick for an application to claim something it cannot do and instead install malware on your computer

  Read an article on Viruses, Trojans and Adware

  pdf    rar    3gp    pps    dat    xls    flv    dll    torrent    bin    unknown    vob    kmz    doc    ppt    exe    sys    mov    mp4    m4a    zip    wpd    dmg    ica    thm    tmp    odt    xpi    bup    wmv    mkv    part    dwg    db    3g2    kml    mdf    bak    sav    r00    tar    jar    lzh    temp    daa    iso    cue    uif    r01    r02    r03    r04    r05    r06    r07    r08    r09    ifo    lha    7z    gz