PLS

PLS

PLS is a computer file format that stores multimedia playlists, originally used by SHOUTcast and Icecast for streaming media over the Internet, such as a desktop icon used for listening to an online radio station that supports PLS, using the user's .MP3 player. PLS is a more expressive playlist format than basic M3U, as it can store information on the song title and length . With PLS version 2, playlists also include a PLS version declaration.

The above text is a snippet from Wikipedia: PLS (file format)
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