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File type: Video File

 

File Extension MOV

MOV files are very common video files that are used for saving and playing movies as well as other videos on personal computers. These files generally use proprietary compression algorithms which are developed by Apple Computers and can be played only on the QuickTime player or by using a QuickTime plugin for other players to be able to play the files. This player is available for both the Macintosh as well as Windows Platform.

 

Open MOV File

Category: Data File.
File format: Proprietary
Open with Windows: QuickTime Player
Open with Linux: QuickTime Player

File type: Data File

 

File Extension MDF

MDF files are the DVD or CD data that is saved as an image using a disc authoring application, for example Alcohol 120%. These are very similar to the .ISO file format but are saved in a slightly different format or structure. In these files the actual data of the discs is stored within the MDF file itself whereas the track and header information is usually stored along with it in corresponding MDS format files.

 

Open MDF File

Category: Data File.
File format: Proprietary
Open with Windows: Microsoft SQL Server
Open with Linux:
MDF files are also the standard file formats used in the automotive industry in order to store measurement data. It has the raw measurement data which were gathered from the actual measurements as well as the metadata that is necessary to be able to interpret the raw data. MDF files are also the primary database format files that are used by the Microsoft product namely, Microsoft SQL Server. It is a high performance database manage system used by large enterprises for large volumes of data which is installed with the Microsoft SQL server as well as its related add-ons. In Microsoft SQL Server the users may also create custom MDF files.

File type: Motion Picture Experts Group

 

.mpg is a file format that is also known as .mpeg. The .mpg files are generally are of audio or video data storage type that supports upto twenty four bits.

mpg files have block based scheme along with motion compensation in terms of compensation. This file format also supports multiple program multiplexing and offers 4095 x 4095 x 30 fps for the image.

This is a completely video streaming format that can be compressed as well. Usually, it is used to store movies. These movies can be easily stored in a compressed format and acquire a very less storage space being compressed.

This file can be easily played in the Windows Media Player and if in any case the windows cannot open the file that means the program is not been installed appropriately. With .mpg file format you can run all the audio and video format.

 

Detailed information 

Category: Music, Video and Multimedia File - .mpg files are generally used to store audio and video files on the compact discs so that these can be used in multemedia systems.
File format: Proprietary
Open with Windows: In Windows it can be easily opened with the Wndows Media Player or Quick Time Player.
Open with Linux: Any software that runs media file
Usually, .mpg file formats have a lossy compression and comprises of two dimensional videos.

File type: System

 

In the case the operating system crashes before it completely shuts down it usually creates what is known as a dump file that contains the exact information and data of all the registers and status of the running applications as well as the status of the system processes that were running at that point just before the operating system crashed.

Along with that it usually also includes some additional human readable data that describes briefly what the error was and what steps should be taken to recover from the error.

These dump files however mostly contain very specific data regarding the machine on which the operating system is installed and what the exact state of the operating system was right before it crashed so that the exact scenario could be reproduced in order to better understand the reasons behind the crash and if possible fix the bug.

This dump file usually should be sent to the vendor since they can make more sense out of it and perhaps offer help in fixing the problem.

These files are usually compressed so as to take minimum possible disk space. This file is usually stored right along with the .HDMP file which is the same file only that its uncompressed.

 

Detailed information 

Category: Data File.
File format: Proprietary
Open with Windows: Visual Studio .NET, Microsoft Dumpflop Utility
Open with Linux:

File type: Image

 

MDI files are very high resolution graphics format that is based on tags and was developed from TIFF format. Microsoft Office uses this file format for saving documents that had been scanned using a scanner.

It can be converted into Word documents (.doc) or alternatively into Optical Character Recognition (OCR) format however saving the files in TIFF format allows to create images that are more compatible and can easily be imported in other applications for graphics editing.

 

Detailed information 

Category: Data File.
File format: Proprietary
Open with Windows: MDI Viewer, Microsoft Office Document Imaging
Open with Linux:

File type: Audio Files

 

What is

M4A files are audio files that use the MPEG-4 compression algorithm for compressing audio. It essentially uses a similar compression algorithm to that used for encoding a .MP4 video.

It only excludes any video data. MPEG-4 audio files may also include copyright protection in order to prevent piracy and unlawful distribution of files.

For example the audio files sold from the iTunes Music Store are copy protected in the same manner and usually have M4P format.

The files which are in .M4A format comprise of the audio layer or non-video part of MPEG 4 movies only. M4A has been widely accepted as a new standard compressing audio.

This format is also called Apple Lossless format or Apple Lossless Encoder format or even ALE shortly.

It is a relatively new codec that has been designed specifically to provide complete lossless encoding to ensure that even though high compression is achieved there is no loss of actual audio information and hence can use less storage space.

 

Detailed information 

Category: Audio File.
File format: Proprietary
Open with Windows: Apple iTunes or QuickTime Player, KSP Sound Player, Microsoft Windows Media Player, NCH Swift Sound WavePad, Winamp, Roxio Easy Media Creator, Other music player
Open with Linux:

File type: Microsoft Exchange Mail Message

 

What is

The MSG file is used all the times by the Microsoft Exchange Mail program when a new message is created and sent through the software. Most popularly Outlook is used for such messages.

It is compatible with other programs which use Microsoft's Messaging Applications Programming Interface.

The file is created when the user creates a message for sending or when a message comes in the Inbox and the same is stored in the message folder of the mail program in the computer. The message contains all the important information that is received or is sent to any mailbox.

The file is an important file and the same should be kept safe for opening the message. The file can be opened by several software applications and shall display the message instantly which is required by the user on opening mail.

The file has the complete authority to display the message but the same needs to be used with a Messaging application.

 

Detailed information 

Category: Text Files - MSG makes the mail readable as the mail comes and goes in this format
File format: Proprietary
Open with Windows: MSG can be run through Microsoft Outlook, Priasoft MSG File Viewer and Assessor, Encyptomatic Msg Viewer Pro in Windows
Open with Linux: Any mailbox software can be used to read these messages
The mail message which is created when sending or receiving messages through a mailbox usually Outlook

File type: Audio

 

What is

MP3 files are compressed audio files. The MP3 audio compression algorithm was developed by Moving Pictures Expert Group and it uses 'Layer 3' for its audio compression.

MP3 codec is usually used to store music files as well as audio books on a hard disk drive since it occupies much lesser space than traditional audio files that weren't compressed. The MP3 format files provide a very good quality and almost near-CD sound quality which is stereo 16-bit sound, in a file that is 1/10 the size of an equivalent .AIF or .WAV file.

 

Detailed information 

Category: Data File.
File format: Proprietary
Open with Windows: Roxio Easy Media Creator, Apple iTunes, Nullsoft Winamp, Microsoft Windows Media Player, VideoLAN VLC media player.
Open with Linux: Amarok, VideoLAN VLC media player, XMMS.
The quality of the sound in an MP3 file however depends largely on bit rates used for compression.
The common bit rates used for standard MP3 files of reasonable quality are 128 kbps, 192 kbps or 160 kbps. Higher bit rates are also possible but usually require much more disk space for storage.
MP3 files are supported by virtually all audio players that are available in the market such as winamp, apple iPod, Microsoft Zune, etc. MP3 files can also be played in several mobile devices using software such as UltraMP3 player.

File type: Video

 

What is

The MKV is a video format container very similar to the MOV and AVI formats that supports several different types of video compression algorithms and video codecs as well as a range of audio compression formats. It can play SSA, USF as well as SRT subtitles and also VobSub subtitles for the DVDs.

The format can include

It was originated in Russia in 2002 through the matroska project and open standard.

The Webm multimedia new format was born from the matroska video.

 

Open MKV FIle

Category: Video File.
File format: Proprietary
Open mkv file with Windows: Media Player Classic, Windows Media Player with Matroska DirectShow playback pack, Core Media Player with CDL plugin, Arpa Kolla Player, VideoLAN VLC media player, Matroska Splitter, NERO Show Time with K-Lite Codec Pack, BS.Player.
Open with Linux: VideoLAN VLC media player.
MKV, short for Matroska Video compression format has become very popular in the recent times especially in the anime fan community where subtitles play a very important role.
This is because the video format supports a wide variety of audio and video compression formats as well a wide variety of subtitle formats within the same container.
The MKV format files can be played even on Symbian, Palm as well as Pocket PC operating systems for mobile devices using the software by the name CorePlayer Mobile.

File type: Audio Files

 

MP4 are movie or other video pictures that use the MPEG-4 compression algorithm. MPEG-4 compression is a standard that was developed by the well known Moving Pictures Experts Group consortium (MPEG). This is commonly used for sharing files over the Internet.

 

Open MP4 File

Category: Data File.
File format: Proprietary
Open mp4 file with Windows: Media Creator, Apple QuickTime Player, Roxio Easy
Open with Linux:
The MP4 video format usually uses a separate compression for video tracks and separate for audio. The video is generally compressed using the MPEG-4 encoding algorithms whereas the audio is generally compressed using the AAC compression algorithm.
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