MM4 performs the update when it upgrades your library from MM3. I had the word Classical in all my classical-style Genre tags, so it correctly put all that music into the Type labeled Classical Music. So if you didn't have the word Classical in your genre(s) at the time you upgraded, you will need t...

BTW, my transition to MM4 has been less painful, at least so far, because the upgrade process picked up on the Genre tags I used in MM3. Classical - 1400-1600 - Renaissance Classical - 1600-1760 - Baroque Classical - 1730-1870 - Classical Classical - 1815-1910 - Romantic Classical - 1900-2000 - 20th...

FWIW, I've just found some more interesting pieces of info: http://gabriel.mp3-tech.org/mp3infotag.html http://www.hydrogenaudio.org/forums/index.php?showtopic=69525 http://www.codeproject.com/KB/audio-video/mpegaudioinfo.aspx I downloaded a byte editor called ByteEditor.exe (which has a very challe...

Can I set Encoder Delay and Encoder Padding on my existing MP3 files? I am willing to edit these tags and set them to my desired values manually, if someone can advise me how to do it. I often download MP3s from sources like Amazon, and I rarely bother buying CD's in physical format any more, so re-...