What is album art and how does it work?

If you are using any of the Windows based Media Players, then Album Art is part of the song/album information that is embedded into the digital information of the song/album. The album Art is a recreation of the Album/CD cover for the album. This information, along with Artist, Title, Track time and other info is stored on newer (1999 +) CDs ad part of the CD. Other information can be/will be obtained from the internet when you are running Windows Media Player and connected to the internet. Hope this helps you understand.