I have multiple duplicates in my library

I've been building my iTunes library for at least 9 years and I have built up quite a few duplicates. I know how to remove them but if I do the one file I have left won't play. If I then proceed to restore all files from the trash they combine into one playable file again (85% of the time anyway). With over 10,000 songs this isn't a viable option. Anyone else have this issue or any idea how to fix it????

Apple's official advice on duplicates is here... HT2905: How to find and remove duplicate items in your iTunes library. It is a manual process and the article fails to explain some of the potential pitfalls such as lost ratings and playlist membership.
Use Shift > View > Show Exact Duplicate Items to display duplicates as this is normally a more useful selection. You need to manually select all but one of each group to remove. Sorting the list by Date Added may make it easier to select the appropriate tracks, however this works best when performed immediately after the dupes have been created. If you have multiple entries in iTunes connected to the same file on the hard drive then don't send to the recycle bin.
Use my DeDuper script if you're not sure, don't want to do it by hand, or want to preserve ratings, play counts and playlist membership. See thisthread for background, this post for detailed instructions, and please take note of the warning
to backup your library before deduping.
(If you don't see the menu bar press ALT to show it temporarily or CTRL+B to keep it displayed.)
The most recent version of the script can tidy dead links as long as there is at least one live duplicate to merge stats and playlist membership to and should cope sensibly when the same file has been added via multiple paths.
tt2

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Sounds like you've managed to create a sync loop. Look at what you're syncing them with. Make sure you're not syncing them to a cloud service that's also syncing to an address book that's syncing to another cloud service that's syncing to the phone... etc.

Can you have multiple accounts in one library?

I've had two iTunes accounts for several years now, and it was never a problem on my old laptop--I needed the second account because I wanted to use a giftcard from outside the US, and the credit refused to apply to the US iTunes store. However, I replaced my computer about a month ago, and the new version of iTunes won't download my iTunes purchases automatically. When I try, it says it's already associated with another account, and it will add restrictions if I set it to automatically download purchases. I don't know what this means, but I'd like a way around it. I don't want to have multiple libraries (which seems to be the only way I've seen other people on the forum use multiple accounts); there's music on both accounts that I listen to all the time. I've been stuck working off of two computers for a month now, and it's getting frustrating. Help?

To elaborate a bit more. The public class must match the filename, however you can declare "inner" classes.
An inner class can be declared inside another class, or even inside another method. Where you declare that class dictates the scope it will have. However, the lack of an ability to declare these classes public (a public class must be declared inside a java file with the same name), means that they are not visible anywhere else. However, they do still have plenty of uses.
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Because I have imported from a number of different sources into Aperture (3.2) over the years, I now have many duplicates in my library. Is there any way in which these can be identified and lated deleted?

Because I have imported photos from a number of different sources into Aperture (3.2), I now have many unwanted duplicates. Some of these are in the same "file/folder", others are not. Additionally, some of the duplicates may have different file names.
Can anyone advise me if there is a way of identifying such duplicates in Aperture so that I may later delete them? If this cannot be achieved within Aperture 3, does anyone know of a proven second-party app?
Before ending I should mention that I am reasonable competent on a computer but I am not in any way an expert. (So simple answers would be appreciated if this is possible!)
Hopefully yours, Jeremy

Jeremy -- I suggest making a complete separate copy of your Library and any Referenced Masters and keeping it for a year. "Duplicate" is, to humans, relative rather than absolute. My use of Duplicate Annihilator turned up many useful near duplicates, most of which I couldn't quickly distinguish. With a complete copy nearby, you can be slightly aggressive in your pruning, knowing that should you turn up something in ten months that you need (as an example: the full-size color file for a black & white printed shot that you thought was based on a full-size color Master but which is not), you'll have it.
IME, it was much more effective to get rid of things I didn't need, than to figure out which of several possible duplicates of an Image I did need.

HT2905 The duplicate option has been removed from the latest version of Itunes. I have over 1000 duplicates and need to have a multiple duplicate removal option. How do i do that?

I have over 1000 duplicates in both my files and in the Itunes library. The duplicate function appears to have been removed from teh latest version of Itunes. How do I identify and remove multiple duplicates from my library and my music file

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tt2

Can I have multiple computers accessing one iTunes library simultaneously?

I've purchased a Lacie Network HD that I'm keeping all of my iTunes on. I've put an alias to the iTunes library from that drive in the music folders of the computers I want to access and update it. That all works well. The only problem is that both computers cannot have iTunes running at the same time. I get an error stating that the library is locked. It would appear that I can't have multiple computers accessing the library at the same time. Is there a work around for this aside from doing network sharing via iTunes? The reason I don't want to do that is that I want both computers to have access to the actual files if I'm using the various iLife apps that use iTunes.

Scott
The only problem is that both computers cannot have iTunes running at the same time. I get an error stating that the library is locked. It would appear that I can't have multiple computers accessing the library at the same time
This is true. It's not a server app.
The nearest thing would be a library file on each machine pointing to the same set of music files. However, you might have problems if both machines try to access a particulat track at the same time. Also, changes made on one machine would not be reflected in the other. So if you rip a CD on one, the files will also have to be 'imported' to the other.
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Deleting a song from my duplicates in my library

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Inside iTunes 8.0 or higher you can do the following method to sort duplicates and easily erase them.
File -> Show Duplicates
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Edit -> Delete
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edbarry12 wrote:
If I use Dup Scout or another similar utility, and it removes the duplicates from the hard drive, won't I end up with many links to now deleted files
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Only you can tell the reasons, but a few questions might help:
- how do you import your pictures in the catalog : via the downloader, from camera, from card reader ?
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- Do you use face recognition ?
- Do you frequently export files for different projects ?
- Do you work with other external softwares such as video or slideshow editors ?
- If you work with the downloader, did you check the option to ignore already imported files ?
- Do the duplicates have the same file name in different folders, or slightly different names in the same folder ?
- Are the duplicate the same size or is one of them of very different size ?
Can you compare duplicates to see in which folder they are ? That might give you a hint about how they were produced ?
Also, which PSE and OS version ?

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Is there a way to delete all duplicates, other than one by one? some free program or does itunes have one to just identify and delete all duplicates in the library?

How do I delete duplicates in my library as a group, rather than one by one?

Apple's official advice on duplicates is here... HT2905: How to find and remove duplicate items in your iTunes library. It is a manual process and the article fails to explain some of the potential pitfalls such as lost ratings and playlist membership.
Use Shift > View > Show Exact Duplicate Items to display duplicates as this is normally a more useful selection. You need to manually select all but one of each group to remove. Sorting the list by Date Added may make it easier to select the appropriate tracks, however this works best when performed immediately after the dupes have been created. If you have multiple entries in iTunes connected to the same file on the hard drive then don't send to the recycle bin.
Use my DeDuper script if you're not sure, don't want to do it by hand, or want to preserve ratings, play counts and playlist membership. See this thread for background, this post for detailed instructions, and please take note of the warning to backup your library before deduping.
(If you don't see the menu bar press ALT to show it temporarily or CTRL+B to keep it displayed.)
The most recent version of the script can tidy dead links as long as there is at least one live duplicate to merge stats and playlist membership to and should cope sensibly when the same file has been added via multiple paths.
tt2

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I added a folder to iTunes when adding some music - sadly it was my backup folder and now I have duplicates of everything in iTunes !
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Apple's official advice on duplicates is here... HT2905: How to find and remove duplicate items in your iTunes library. It is a manual process and the article fails to explain some of the potential pitfalls such as lost ratings and playlist membership.
Use Shift > View > Show Exact Duplicate Items to display duplicates as this is normally a more useful selection. You need to manually select all but one of each group to remove. Sorting the list by Date Added may make it easier to select the appropriate tracks, however this works best when performed immediately after the dupes have been created. If you have multiple entries in iTunes connected to the same file on the hard drive then don't send to the recycle bin.
Use my DeDuper script if you're not sure, don't want to do it by hand, or want to preserve ratings, play counts and playlist membership. See this thread for background, this post for detailed instructions, and please take note of the warning
to backup your library before deduping.
(If you don't see the menu bar press ALT to show it temporarily or CTRL+B to keep it displayed.)
The most recent version of the script can tidy dead links as long as there is at least one live duplicate to merge stats and playlist membership to and copes sensibly when the same file has been added via multiple paths.
tt2

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Help! I 'm using an old G4 powerbook, Mac OSX 10.5.8, iTunes ver 10. I have multiple iTunes libraries on an external drive. Everything was fine for a while, then all of the iTunes library files, i.e. iTunes Library.itl, xml, itdb, artwork folder, Media folder, etc mysteriously disappeared! Only the music files remain (thank god) So now when I start iTunes w/option key to choose a library, I can't choose any of them because iTunes won't recognize them. Because all the library stuff is missing. So can I re-create the library files? (I don't care if I lose my ratings)
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it is.
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i wouldn't - at least not until i
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Here's the scenario:
We have Multiple devices
We would like to have one large library on either our NAS (preferred) or iMac.
The iMac will remain on 24/7 with the option to sleep. It will wake upon network activity. It has multiple accounts for each user.
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Wireless as possible
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Wife's MacBook (2008 Aluminum)
"Family/Business" iMac
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Wife's iPhone 4
"Family" iPad2
iPod 80gb
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Hey all,
Here's the scenario:
We have Multiple devices
We would like to have one large library on either our NAS (preferred) or iMac.
The iMac will remain on 24/7 with the option to sleep. It will wake upon network activity. It has multiple accounts for each user.
We don't want to sit down and open up iTunes only to find out that library wasn't the same on that mac vs. another.
Wireless as possible
Backup's run to the iMac vs. iCloud wirelessly.
Equipment:
My MacBook (2007 Black)
Wife's MacBook (2008 Aluminum)
"Family/Business" iMac
My iPhone 4
Wife's iPhone 4
"Family" iPad2
iPod 80gb
Is this super easy or am I totally over thinking this? It seems to me that this should be a no brainer, but I'm having a hard time on making it work and finding a good reference. Any help is appreciated!

I have multiple duplicates in my library

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