MP3 ID3 tags are used to embed information such as artist, album, title and even an image (cover art).
Podcast Metadata: Should I Use MP3 ID3 Tags for My Podcast?
If you have a consumer or business podcast on iTunes or any other distribution website, you should definitely consider embedding ID3 tags into your final MP3 file. MP3 metadata is the most important element in producing a high quality, professional [...]