2 ms·

Do this for mp3.

• tyingq 8y ago
  Probably easier. The MP3 standard didn't include any standard for tags, so the tags standards evolved separately. Basically, you can append any random crap you want at the end of an mp3. Since a zip file has it's headers at the bottom, it wouldn't be hard to do. I don't know if popular mp3 sites scrub/transform mp3 files in the way image sites do to images though. Edit: Tried it, and got it to work. The zip command on Linux has a -A option that will fix the offset headers after you cat an mp3 and a zip file together. Just "cat file.mp3 file.zip > newfile.mp3;zip -A newfile.mp3" and you're done. I did notice that some mp3 file upload sites reprocess the mp3 file and strip out the extra bits. Some don't though. Here's a Bach mp3 that you can play online: https://instaud.io/2RLM https://instaud.io/2RLM But, if you download it, via the buttons on the page, you'll see it's also a valid zip file containing a jpg meme of bach.