It is a Windows Media Player database file. This file contains metadata relating to sound files played by Windows Media Player rather than the audio information itself. These files contain text data related to the files themselves. These files cannot be played as they store information like the artist's name or year of release. Media information is either retrieved automatically from online databases or entered manually by the user.
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Compatible with Window XP, Vista, 7, 8, 8.1 and 10