What are ID3 and WMA tags?

ID3: They represent information (like Title, Artist and more) embedded into the file itself and are used to correctly identify your music. You can take advantage of them when you want more details about the song, when you are playing it on your computer, CD or DVD player, portable MP3 player or even one of the new car players that can read MP3s. This way you can say goodbye to "Track 01" and the like.

ID3v1 format is old but still very popular. The first reason of this is that they take very little space (last 128 bytes of file) and are easy to work with.The problem is that each of the 6 fields is of fixed size and you can't expand the tag in any way.

ID3v2 introduced unlimited tag size and dozens of different tag fields called frames. This format was created with streaming in mind, that's why the tag is located at the beginning of files. Unlike ID3v1, the fields can contain any text and there are no limits on the number of characters in each field. Winamp currently supports some of v2 fields.

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