File Extension MP4

File type: Video File

Click here to run a free instant scan for MP4 related errors.

Notes about the MP4 file extension:

Errors in your registry are one of the common causes for incorrect file associations on your windows system. It is highly recommended that you check your registry for file association errors (will also check for any other registry errors).

The MP4 file type is primarily associated with 'MPEG-4'. You often see BIFS associated with MPEG-4. BIFS stands for "Binary Format for Scenes". BIFS provides a complete framework for the presentation engine of MPEG-4 terminals. Play MP4 files with various players; just download the correct CODEC from the player's Website. For a summary of how to view an MPEG-4 movie on a Sony PSP, see the FAQ.

Cannot access MP4 files on windows?

When windows gives you an error message saying that it
"Cannot open MP4 files", this means either:

A. You need to identify a program that can open the file
B. Or your registry may be damaged

RECOMMENDED:

In both cases it is strongly recommended that you
run a free scan for registry errors.

File extension: .MP4

Detailed information for file extension MP4:

Primary association: MPEG-4

Mime type: video/mp4v-es, audio/mp4

Identifying characters Hex: 00 00 00 , ASCII:

Program ID: NeroMIX.File , NeroShowTime.Files , QuickTime.mp4 , RealPlayer.MP4.6

Related links: MPEG-4 Industry Forum, FILExt Video FAQ

'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database

Technical data

To view technical data on file-extension MP4 click this link to expand/hide the additional area.

System Info for File Extension .MP4

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: Winamp.File
EXEFile: %ProgramFiles%\Winamp5\Winamp.exe %1

ProgramID: ACEMegaCoDecSPack.MPEG4VideoFileS
EXEFile: %ProgramFiles%\ACE Mega CoDecS Pack\Media Player Classic\mplayerc.exe %1 /open

ProgramID: Rhapsody.Document
EXEFile: %ProgramFiles%\Rhapsody\Rhapsody.exe %1

ProgramID: Winamp.File
EXEFile: %ProgramFiles%\Winamp5.08\Winamp.exe %1

ProgramID: Rhapsody.Document
EXEFile: %ProgramFiles%\Comcast Rhapsody\rhapsody.exe %1

ProgramID: 3ivx.mp4
EXEFile: %ProgramFiles%\Windows Media Player\mplayer2.exe %L

ProgramID: NeroShowTime.Files
EXEFile: %ProgramFiles%\Ahead\Nero ShowTime\ShowTime.exe %1

ProgramID: ZPMP4File
EXEFile: C:\Documents and Settings\Kimbali Bays\Desktop\XP CD Creator update\microsoft\zoomplayer403std\zplayer.exe %L

ProgramID: QuickTime.mp4
EXEFile: %ProgramFiles%\QUICKT~1\MoviePlayer.exe %1

ProgramID: mplayerc.mp4
EXEFile: %ProgramFiles%\K-Lite Codec Pack\Media Player Classic\mplayerc.exe

ProgramID: StudioII.Player
EXEFile: %ProgramFiles%\Samsung\EASYST~1\FILEMA~1\EASYST~1.EXE

ProgramID: Microsoft.Zune.1.MP4
EXEFile: %ProgramFiles%\Zune\Zune.exe /Open

ProgramID: Winamp.File
EXEFile: %ProgramFiles%\Winamp\Winamp.exe %1

ProgramID: RealPlayer.MP4.6
EXEFile: %ProgramFiles%\RealOne Player\RealPlay.exe %1

ProgramID: RealPlayer.MP4.6
EXEFile: %ProgramFiles%\Real\RealPlayer\RealPlay.exe %1

ProgramID: RealPlayer.MP4.6
EXEFile: %ProgramFiles%\Real\RealOne Player\RealPlay.exe %1

ProgramID: QuickTime.mp4
EXEFile: C:\QUICKT~1\QuickTimePlayer.exe %1

ProgramID: QuickTime.mp4
EXEFile: %ProgramFiles%\QUICKT~2\QuickTimePlayer.exe %1

ProgramID: QuickTime.mp4
EXEFile: %ProgramFiles%\QUICKT~1\QuickTimePlayer.exe %1

ProgramID: QuickTime.mp4
EXEFile: %ProgramFiles%\Free\QUICKT~1\QuickTimePlayer.exe %1

ProgramID: mpegfile
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe /prefetch:9 /Open %L

ProgramID: MPEG-4 File
EXEFile: %ProgramFiles%\Kazaa 2.4\K-Lite Codec Pack\media player classic\mplayerc.exe %L

ProgramID: MPEG-4 File
EXEFile: %ProgramFiles%\K-Lite Codec Pack\media player classic\mplayerc.exe %L

ProgramID: MPEG-4 File
EXEFile: %ProgramFiles%\K-Lite Codec Pack\Media Player Classic\mplayerc.exe %1

ProgramID: mp4file
EXEFile: %ProgramFiles%\mpegable\Player\mpegablePlayer.exe %1

ProgramID: foobar2000.mp4
EXEFile: %ProgramFiles%\foobar2000\foobar2000.exe %1

ProgramID: foobar2000.mp4
EXEFile: %ProgramFiles%\Audio\foobar2000\foobar2000.exe %1

ProgramID: ACDSee 7.0.mp4
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\7.0\ACDSee7.exe %1

ProgramID: totalplayer.file
EXEFile: %ProgramFiles%\Total Video Player\tvp.exe

ProgramID: 3ivx.mp4
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe %L

ProgramID: QuickTime.mp4
EXEFile: %ProgramFiles%\QuickTime\QuickTimePlayer.exe %1

ProgramID: YMP.Media
EXEFile: %ProgramFiles%\Yahoo!\Yahoo! Music Engine\YahooMusicEngine.exe -play %1

ProgramID: ZPMP4File
EXEFile: %ProgramFiles%\Combined Community Codec Pack\MPC\mplayerc.exe

ProgramID: AudioManager.File
EXEFile: %ProgramFiles%\Nokia\Nokia PC Suite 6\AudioManager.exe

ProgramID: Rhapsody.Document
EXEFile: %ProgramFiles%\COMCAS~1\rhapsody.exe %1

ProgramID: mplayerc.mp4
EXEFile: %ProgramFiles%\Ringz Studio\Storm Codec\mplayerc.exe

ProgramID: MP4File
EXEFile: %ProgramFiles%\JetAudio\JetAudio.exe %1

ProgramID: SonyMP4
EXEFile: %ProgramFiles%\WINDOW~2\wmplayer.exe %1

ProgramID: Winamp.File
EXEFile: %ProgramFiles%\JetAudio\JetAudio.exe %1

ProgramID: NeroShowTime.Files.mp4
EXEFile: %ProgramFiles%\Ahead\Nero ShowTime\ShowTime.exe

ProgramID: NeroShowTime.Files.mp4
EXEFile: %ProgramFiles%\Ahead3\Nero ShowTime\ShowTime.exe

ProgramID: 3ivx.mp4
EXEFile: %ProgramFiles%\Windows Media Player\mplayer2.exe /play

ProgramID: mp4File
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe /prefetch:6 /Open

ProgramID: GomPlayer.mp4
EXEFile: %ProgramFiles%\GRETECH\GomPlayer\GOM.exe /open

ProgramID: mplayerc.mp4
EXEFile: %ProgramFiles%\StormPlayer\mplayerc.exe

ProgramID: StudioII.Player
EXEFile: %ProgramFiles%\Samsung\SAMSUN~1.0\PIMS

ProgramID: QuickTime.mp4
EXEFile: %ProgramFiles%\QuickTime Alternative\QuickTimePlayer.exe

ProgramID: KLCP MP4 File
EXEFile: %ProgramFiles%\K-Lite Codec Pack\Media Player Classic\mplayerc.exe

ProgramID: ACDSee 8.0.mp4
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\8.0\ACDSee8.exe

ProgramID: Winamp.File
EXEFile: %ProgramFiles%\K-Lite Codec Pack\Media Player Classic\mplayerc.exe

ProgramID: QuickTime.mp4
EXEFile: %ProgramFiles%\ACE Mega CoDecS Pack\Media Player Classic\mplayerc.exe

ProgramID: ALShow.MP4
EXEFile: %ProgramFiles%\ESTsoft\ALShow\ALShow.exe

ProgramID: OpenMG_Mp4
EXEFile: %ProgramFiles%\Sony\SonicStage\Omgjbox.exe

ProgramID: Democracy.Player.1
EXEFile: %ProgramFiles%\Participatory Culture Foundation\Democracy Player\Democracy.exe

ProgramID: totalplayer.file
EXEFile: %ProgramFiles%\Total Video Converter\tvp.exe

ProgramID: KLCP MP4 File
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe

ProgramID: KMPlayer.mp4
EXEFile: %ProgramFiles%\The KMPlayer\KMPlayer.exe

ProgramID: Nokia.Multimedia
EXEFile: %ProgramFiles%\Nokia\Nokia PC Suite 6\MultimediaPlayer.exe

ProgramID: StudioII.Player
EXEFile: %SystemRoot%\PLAY32.EXE

ProgramID: QuickTime.mp4
EXEFile: %ProgramFiles%\QUICKT~1\QUICKT~1.EXE

ProgramID: GomPlayer.mp4
EXEFile: %ProgramFiles%\_Media\Players\GomPlayer\GOM.exe /open

ProgramID: KLCP.MP4
EXEFile: %ProgramFiles%\K-Lite Codec Pack\Media Player Classic\mplayerc.exe

ProgramID: Miro.1
EXEFile: %ProgramFiles%\Participatory Culture Foundation\Miro\Miro.exe

ProgramID: MP4
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe

ProgramID: PDVDfile
EXEFile: %ProgramFiles%\CyberLink\PowerDVD\PowerDVD.exe

ProgramID: qvodplayer.mp4
EXEFile: %ProgramFiles%\QvodPlayer\QvodPlayer.exe -localfile

ProgramID: AVSVIDEO
EXEFile: %ProgramFiles%\AVSMedia\DVDPlayer\AVSDVDPlayer.exe

ProgramID: ACDSee 9.0.mp4
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\9.0\ACDSeeQV.exe

ProgramID: ACDSee.mp4
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\5.0\ACDSee5.exe

ProgramID: MediaMonkey.MP4File
EXEFile: %ProgramFiles%\MediaMonkey\MediaMonkey.exe

ProgramID: tigerplayer.mp4
EXEFile: %ProgramFiles%\MpcStar\mpcstar.exe

ProgramID: VLC.mp4
EXEFile: %ProgramFiles%\K-Lite Codec Pack\Media Player Classic\mplayerc.exe

ProgramID: Nokia.VideoManagermp4
EXEFile: %ProgramFiles%\Nokia\Nokia PC Suite 7\Nokia Video Manager\VideoManager.exe

ProgramID: mp4file
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe /Open

ProgramID: MediaMonkey.MP4File
EXEFile: %ProgramFiles%\MEDIAM~1\MEDIAM~2.EXE

ProgramID: KLCP.WMP.mp4
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe

ProgramID: MPlayerFileVideo
EXEFile: %ProgramFiles%\MPlayer\mplayer\smplayer_portable.exe

ProgramID: RealPlayer.MP4.6
EXEFile: %ProgramFiles%\Dhamu\Download\RealPlay.exe

ProgramID: WMP11.AssocFile.MP4
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe /prefetch:6 /Open

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