Files that contain the .mpd file extension are normally associated with the Microsoft Project project management software. The MPD files that are used by this program contain database files that have been created with the Microsoft Project application.
The data that is stored within an MPD file is similar to the data contained in an Access database file. You can use the MPD files to load a project in a records-based database format.
The .mpd file extension is also used to store playlists of different MP3 files. These MPD files do not contain any audio files in and of themselves, but they do contain references to the MP3 files that are in the MPD playlist.
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