Context: However, several de facto standards for tag formats exist. As of 2010, the most widespread are ID3v1 and ID3v2, and the more recently introduced APEv2. These tags are normally embedded at the beginning or end of MP3 files, separate from the actual MP3 frame data. MP3 decoders either extract information from the tags, or just treat them as ignorable, non-MP3 junk data.

Question: Other than the ID3v1, which similar standard format for tag exists?
Answer: ID3v2

Question: What is the most recently introduced standard for tag formatting?
Answer: APEv2

Question: What is the second place in a file that tags are normally stored, with the first being at the beginning?
Answer: end

Question: What is important to note about where the tags are stored?
Answer: separate from the actual MP3 frame data

Question: If the MP3 decoders do not extract information from the tags, what do they do to them?
Answer: treat them as ignorable, non-MP3 junk data