.MPD File Extension

File Type 1

Microsoft Project Database

Developer Microsoft
3.4  |  18 Votes
Category Database Files
Format Binary

What is an MPD file?

Database file created by Microsoft Project, a program used for project management; contains project data stored in a Microsoft Access-compliant format; used to save and load an entire project in a relational records-based database format.

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NOTE: MPD files cannot be saved by Microsoft Project 2007 or later. However, existing MPD files may still be used as a basis for a new project.

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Programs that open MPD files

K-SOL Project Reader
Updated March 16, 2010
File Type 2

File List Creator Playlist

Developer WenSoftware
2.8  |  5 Votes
Category Data Files
Format Binary

What is an MPD file?

File used by File List Creator (FLC), a utility that helps users manage and track their computer files; stores a list of files; commonly used to store a playlist of .MP3 files; may also store lists of digital photos, compressed files, and other file types.

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While MPD files track lists of files, they only contain file references, not the actual files themselves.

NOTE: MPD is also short for "Music Player Daemon," a music player for Unix that can play audio files from remote systems.

Programs that open or reference MPD files

WenSoftware File List Creator
Updated March 16, 2010
File Type 3

MPEG-DASH Media Presentation Description

Developer Moving Picture Experts Group
2.5  |  2 Votes
Category Text Files
Format XML

What is an MPD file?

An MPD file is a text file that describes how an MPEG-DASH video is streamed. It contains XML-formatted text that a web client uses to deliver .M4S (or other) streamed videos to Internet users. MPD files define streamed videos' segment duration, codec, MIME type, maximum dimensions, and other settings.

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Screenshot of a .mpd file in Microsoft Visual Studio Code
MPD file open in Microsoft Visual Studio Code

MPEG-DASH is an adaptive bitrate streaming technique that allows users to stream high-quality video over the Internet using HTTP. Videos streamed using MPEG-DASH are divided into segments, which allows web clients to stream long videos without stalling or re-buffering.

MPD files define how a video streamed using MPEG-DASH is divided into segments and shown to users. While different MPD files contain different formatting and settings, all MPD files are XML files. They all also include the <MPD>, <Period>, <AdaptationSet>, <Representation>, and <SegmentTemplate> elements, which are used as follows:

  • <MPD>: Defines the streamed video's profile, minimum buffer time, total duration (if known), and segment duration
  • <Period>: Defines the streamed video's chapters and chapter duration
  • <AdaptationSet>: Defines the streamed video's alignment, maximum dimensions, maximum frame rate, language, and content type
  • <Representation>: Defines the resolutions and bitrates at which the streamed video is available
  • <SegmentTemplate>: Defines the time offset and duration of the streamed video's segments

How to open an MPD file

MPD files are XML files, so you can open and edit them in any text or source code editor, including:

Opening an MPD file in a source code editor will highlight the file's XML syntax, making the file's text easier to understand and edit.

Programs that open or reference MPD files

Updated April 23, 2021

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