MATBIC  This is not the one for you if you have a lot of duplicates. It will only process about 2000 files at one time. So you have to select them in batches to process them in iDupe. This makes it a very "hands on" affair to de-dupe a lot of files so you have to keep watching it and selecting the next batch of files. It has great functionality when dealing with up to 2000 files at a time. Look at Dupin it handles lots of files in one go, you just point it at your Music folder and leave it to it.

Great software except for this one point.   
(Version 2.5.2)

CV  I would not buy anything from this company. I paid my $8.00 by mistake thinking there was a windows version. I was told there was not. I was also told that there was no refund and then berated by these people. There are plenty of other apps that do the same thing and probably better. Don't waste your money dealing with these people.  
(Version 2.3)

DONPERREAULT  I found Dupin to be much more accurate and faster duplicate scanner. Dupin can be found at http://dougscripts.com/itunes/

Along with numerous iTune scripts. Very impressive collection of scripts.  
(Version 2.3)

ANONYMOUS  This si especially handy if you have an iPod with limited space - but WHY OH WHY isn't this function truly built into iTunes already?

Some say it is, but I don't think they get it. iTunes will find anything you're searching for, but doesn't intelligently or automatically find duplicates.

This is also a dupe: same song, slightly different spelling, different bitrates or even a 1 second diference in length.  
(Version 1.4.1)

ANONYMOUS  Good Idea - even though iTune finds duplicates itself, there is no easy way to delete them just from one playlist or the bibl. without affecting the bought music list. Anyway - for me it not usable because of the following: I have a est. 11,000 songs in the bibl. And there are doubles e.g. same Artist, same Song, different Album. For Dupe these are doublettes. So I still have to check manually. While the bibl. keeps growing it is somewhat painful....  
(Version 1.4.1)

RHETT  This sort of thing should be freeware. It's a great program but so limited in use, scale, and functionality I don't get how it can be shareware. Even at $8.

From my perspective freeware is the kind of app you use once and forget about, or at best occassional use. Shareware, the kind you buy, is an application that does something you're going to need regularly that performs an important maybe even unique function. iTunes already has the basic feature out, iDupe certainly expands upon it and improves it. But how often you use this app significantly undercuts its commercial value.

Unless you operate your computer under dubious patterns checking your iTunes library regularly for duplicates isn't something you're going to do. Maybe once or twice a year, but even that's pushing it.  
(Version 1.4)

ANONYMOUS  Actually this takes the iTunes dupes to the next level (albeit not perfect).

I have a huge collection that it cannot parse. So give iDupe only the duplicate songs that iTunes find and it find actual dupes. Then it automatically selects the lowest bitrate song and gives you the option to delete it.  
(Version 1.3.1)

NEVAEH  $8...are you kidding me?

save your money folks, if you didnt know iTunes already finds duplicate songs for you for $FREE.99

that's right, in iTunes in your menu bar go to Edit and select "show duplicate songs" and then simply select and delete the uneeded tracks. To get out of this mode you can go back up to edit and select "show all songs" or conveniently at the bottom of the list of duplicates iTunes provides a button that says "show all songs"

WOW all that FOR FREE, the developer should be ashamed!  
(Version 1.3.1)

ANONYMOUS  but I see you have the dead tracks thingie.

Good on you.  
(Version 1.3)

ANONYMOUS  Anybody who's not babbling and drooling on his shoes is capable of keeping duplicates out of a library merely by intelligent organization of artist and title data.

If you had an app that scanned the library for missing .mp3 files, then you'd have something. Then again, I guess only the droolers will need that feature, too.

But my hat's off to you for creating an app that helps out all the droolers out there.  
(Version 1.3)