Ton of software. An mp3 is nothing more then a file format. They have information associated with the songs. A good software will automatically update the information on the tags (info about the song) so that the MP3 players can extract info such as artist, album, song name. Often you have to pay to have the software updated so it will update the tag info. I use MusicMatch which works well but you get into software that starts doing "too much" which is a pain some times.
Gary
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