Tag (metadata)
After ripping and encoding a media file, many people choose to add tags to the file. These tags hold information about the media such as artist, album, track title and so on. As different audio formats evolve so do different tagging specifications have been developed. Below is a brief summary of these tagging specifications. Also, each format has technical information.
To use the above tag formats you need some kind of tag editor. Most audio formats have their own program to add tags, but players like Winamp and Foobar2000 can also edit tags and there are some general tagging utilities available (see the Download page).