dupeGuru - MP3, WMA, OGG, AAC (iTunes) duplicate scanner

Ok, this post is not directly about programming or web development. But I bet you will have some music accompany when you are coding, right? (What a nerd if you don't!). There was always this question of "duplicate" songs which bothered me alot. I want a clean music library! And I found this nice piece of software which could run on all major OS. dupeGuru - MP3, WMA, OGG, AAC (iTunes) duplicate scanner . It doesn't just match by song name or tag, it will do some audio fingerprint matching as well. It promise to do it FAST. So give it a try and see if you like it.

Apart from removing duplicate, there are 2 more problems which I have with songs.

1. properly name , tag the songs and find album art

2. generate a list of similar music, after I provide 2 or more music

If you happen to have some kind of software or solution to those 2 problem, please let me know. Thanks in advance!

[Edited] Seems I found the answer to my #1 question in
http://musicbrainz.org/doc/MusicBrainz_Picard  and http://www.besttechie.net/2010/05/01/how-to-auto-tag-mp3s-using-foobar2000-freedb/