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I’m frustrated

How to Sync iTunes library on multiple computers?

Is there an effective way to sync iTunes library between multiple computers, keeping play counts, ratings etc. synchronized?

I tried several tools, from rsync to iTunes dedicated sync, but none seem to work in a safe and efficient way, as itunes syncing to AppleTv does.
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  • If you have an iPod / iPhone, your best bet is to use this device as an intermediate step between the two libraries:

    - Sync your iPod with the first library
    - Transfer its contents, including ratings, play counts, etc to the library on the second computer as per these instructions http://www.from-iphone-to-computer.com
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  • 4
    If you go to the ADVANCE button at the top of your Itunes go down to where it says TURN ON HOME SHARING, you must do this on all computers you want to sync together, and follow the directions. Any time you want to sync music, videos etc from one pc to the other both have to on and in itunes. Once you have set up sharing anytime the pc's are on at the same time you will see the shared title come up on the side with the name of the pc that's on and able to share.
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  • I’m thankful
    Keitisha thanks for chiming in, however this thread is mainly about syncing, and that implies that changes are able to go both ways. When you use home sharing, you are doing just that(sharing), you are able to share a library(access it from another computer) but not make changes to it from any computer except the one hosting the shared library. Sharing and syncing are different tasks and have different requirements. It's not as easy to keep a single library in sync across multiple computers, but with tools such as PowerTunes, it's doable with a bit of manual labor.

    THanks again!
    Krille
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  • I’m feeling good to have found such a good solution
    A good way to keep iTunes libraries synchronized across multiple computers is to use an iPod or iPhone as an intermediate step:

    - Sync your iPhone with the first library
    - Import your iPhone contents to the second library as per these instructions
    http://www.sync-iphone.com/transfer-i...
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  • 3
    lol no. this is not "a good way". this is a ridiculous stupid way.
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  • 1
    gregor.gonzales... there is no need to get nasty. just because you can hide behind the anonymity of the internet doesn't give you the right to insult. take the high road and either say nothing or offer constructive criticism... you'll be a better person for it.
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  • I’m frustrated
    2
    I'm with Gregor on this one. If Nick and all the rest of the people posting replies about using an iPod to manually transfer music to multiple libraries had actually read through the entire thread, they would realize that this method does not at all accomplish what we are trying to do. Thanks for trying I guess but please do not reply without reading the entire thread first.
    • Sorry, but the thread is now far too long to read the entire thing. :(
      I hope you understand that. Just because Nobody on here really knows you it doesnt give you the right to be rude. Its the internet, not for abusing attempts to help someone
    • No, some people need reminders of how to contribute to a discussion where people are actively trying to share and find information. Randomly chiming in with unhelpful answers makes it harder for those of us seeking that information. We have to sift through their BS just to get to the answer we want. To be fair, Gregor didn't call Nick stupid, he merely called his "solution" stupid.
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  • Don't get me wrong, Nick's reply didn't add to the discussion but, please, let's be civil here on this community forum. There is more that one way of getting a point across. Thanks.
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  • I’m undecided
    sorry for chiming in... and again this story may have been suggested...
    I have my whole library on a desktop Windows XP. I want to be able to view, sync and do everything that I would be able to do on my desktop with my windows 7 laptop WITHOUT running around with iPhones transferring. I am already using home sharing but I noticed iTunes must be open on both computers. I don't know if I can make another drive (complicated reasons). Either way... please help, I am sure that almost every other commenter talking about SYNCING (not sharing) has pretty much the same story as me (except maybe with a mac, or more computers). Thankyou (:
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  • Hi all, and thanks for a very interesting thread. I am trying to accomplish scenario 2 described above, that is, having ONE iTunes music library and ONE iTunes library file, on a NAS drive, accesible from two or more computers in my home network.

    I have set my first computer up, moved every music file to the NAS and have created a new iTunes library file on the NAS. The first computer is up and running. Since I also want to be able to "take my music with me" when on the road, I will set up the music folder on the NAS to be an offline folder (I am using WIndows). That way, eventual changes in the music library will be syncronized, and hopefully, the iTunes library file will also be updated with "the latest" version.

    As soon I'll return from x-mas, I'll try to set my second computer up to access the shared library and iTunes library file, and hopefully, I have a solution that works...

    The benefits with using offline-files is, that if there is any problems accessing the same iTunes library file simultaniosly from two different machines, I can always unmount or mute the wifi, and voila, the computer will play the files syncronized offline to the computer it self.

    The best regards from Patrik
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  • I’m in a partymood
    @patrik: When you say accessible do you also mean accept changes(i.e adding new files) from two or more clients on the network? I'm not very well versed in Offline folders, i worry what happens if two or more clients try to sync their changes to the same folder simultaneously, could conflicts arise this way(i.e 2 clients staying open for long periods of time between resyncing)?

    But your overall plan appears sound. If i'm reading you correctly you do not have to change path for the iTunes library and its files to switch from online to offline mode, it will happen transparently to iTunes. This sounds interesting!

    I believe as long as you remember to only have one instance of the library that you are adding files to open at any given time(strictly playback instances are fine*) it should Just Work®.

    *The caveat is that without an ability to run PowerTunes or some such utility able to locate and add orphans(files added by another instance) to the library on the fly, you will most likely have to restart iTunes on the playback clients for recent changes to take effect(iTunes will reload its library file and the newly added files are no longer orphaned).

    Good Luck and please report back your continued research into sync heaven!

    Gott Nytt År! :D

    very truly yours,
    krille
    • Hi Krille, and thanks for your reply. A few days ago I returned home again, and spent some time setting things up. The first possible trap is, that the NAS works with user accounts, just like a server. So, files added by the first laptop did not show up on the NAS when looking at the folders from my second laptop. So, I created a group of users, with different account names, but with the same rights to acces/add/modify on the NAS. And then it actually worked (!).

      However, my oldest laptop began to work very slowly, and the offline syncronization had some errors from time to time.

      So, in time for new years eve, and in order to be sure to play some music, I turned the offline-concept off from my oldest laptop.

      After fiddling some time with the computer the 1'st of January, it turned out, that the harddrive on the laptop where almost full, and this is probably the reason wy the syncronization started to perform badly...

      Now I use my old computer as the one where I buy music from, and my second (work) laptop uses the offline-setup connected to my NAS. New songs added/bought on the first laptop can then easily be added to the network and atuomatically be syncronised to my second one.

      One wonder though, why it should be so damn hard to accplompish something so easy...

      The best, Patrik
    • Hi Krille, and thanks for your reply. A few days ago I returned home again, and spent some time setting things up. The first possible trap is, that the NAS works with user accounts, just like a server. So, files added by the first laptop did not show up on the NAS when looking at the folders from my second laptop. So, I created a group of users, with different account names, but with the same rights to acces/add/modify on the NAS. And then it actually worked (!).

      However, my oldest laptop began to work very slowly, and the offline syncronization had some errors from time to time.

      So, in time for new years eve, and in order to be sure to play some music, I turned the offline-concept off from my oldest laptop.

      After fiddling some time with the computer the 1'st of January, it turned out, that the harddrive on the laptop where almost full, and this is probably the reason wy the syncronization started to perform badly...

      Now I use my old computer as the one where I buy music from, and my second (work) laptop uses the offline-setup connected to my NAS. New songs added/bought on the first laptop can then easily be added to the network and atuomatically be syncronised to my second one.

      One wonder though, why it should be so damn hard to accplompish something so easy...

      The best, Patrik
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  • I’m in a partymood still!
    @gabstaree I'd say it depends on the specifics of your usage patterns. One classic way to do it is to share your music folder from your deskop win machine on the network, and setup iTunes on other machines to read directly from this networked location. I believe you want to first share the iTunes folder and then map this share as a network drive on the clients.

    This will work fine provided the desktop machine is always up and running offcourse, and only one instance of the library is adding files to it at any given time.

    But since your other machine is a laptop you will probably want to take your library with you which means you are in the same boat as patrik above. You should look into centralized storage(e.g a NAS) as well as offline folders to allow you to take your content with you.

    Hope this helps!

    very truly yours,
    krille
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  • I’m unsure
    Firstly, thanks to Julpi and chris.farrell for summarising the lengthy and mostly-helpful dialogue. I understand the options posed. I plan on trying MediaRover, and will see if I can partially synch (library is getting big). Question: does AppleTV have a role to play in such a network once we solve the synching issue? Or does it only operate in the single-library approach wrongly described here, (but useful nonetheless)?
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  • Hi, there is an article @LearningMacOSX that describes how you can use AppleScript, Automator and rsync to do a sync between two Macs.

    http://www.learningosx.com/synchroniz...
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  • I’m confident
    Note that I only intend to do a one way sync. This means I’ve picked one of my two libraries to act as the master library that will sync to the second library. It’s possible to sync both ways but I feel it is safer to just go one way.

    This is a great guide and it uses Applescript which is the tool of choice if you wish to interact with other Apple software. It doesn't however utilize it to access live iTunes sessions which i believe may be it's strongest feature.

    I'd be very interested in knowing about this 2-way sync, and especially how he's solved concurrency, that is 2 clients making conflicting changes to the same (meta)data.

    I believe its fully possible to implement today with just the control surfaces exposed by iTunes for accessing live libraries, the rest is "just" glue logic and a mechanism for merging/arbitration of changes from multiple instances.

    I envision a client/server model where each node in the network runs both a sync daemon and any number of clients. The sync daemons find each other and also optionally accept remote connections(i.e for updating your library while on the move). They all endeavor to keep as recent a snapshot of the current library/store as possible, and any changes coming in are handled with care and intelligence(I.e if we accidentally remove all our files on our laptop, we stilll have them in a rollback state at home, as such always opt for safe over sorry here).

    Someone just has to code it all up :)
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  • I’m confident
    You could get an Itunes account and that will let you use it on different computers. If you have a memory stick put all your music on there and then put it on all the computers / laptops you are using for your itunes.
    I am currently trying to use 2 computers for my ipod I found that this method works very well. I prefer to use a computer with a disk drive as the main one because I can put CD's on it.
    I hope you find this useful.
    • Thanks cullen for chiming in, i do recommend reading the whole thread however, for just a few minutes of invested time you may gain a bit of knowledge. :) It's true what you're describing(cloning library/store sets) does work and will allow you to sync iDevices. But what happens when you start making changes, adding or removing files? Since there is no mechanism to synchronize the clones, it starts to fall apart in most usage scenarios.
    • This comment was removed on 2011-02-21.
      see the change log
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  • I’m confident
    What about Dropbox? It seems you could put your iTunes folder within your dropbox, which would result in two-way syncing of all of your data.
    • It works well but care has to be taken to only have one active instance open at any given time, if not you risk making conflicting changes to your metadata, and this will show up in DropBox as a conflict which will need to be manually resolved. The original author needs full 2-way(or more) sync, this means merging and arbitration of live libraries, for which there currently aren't any tools.
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  • what about this:

    have a cronjob run every xx days (7 or so) and convert your library.xml to meet the directory structure of the other pc. something like this:

    >>>
    #!/bin/bash

    # copy original itunes lib to temp folder
    cp ~/Music/iTunes/iTunes\ Music\ Library.xml /tmp/library.xml
    # Replace the iTunes Library Key
    sed 's/key1/key2/g' /tmp/library.xml > /tmp/library_tmp.xml && mv /tmp/library_tmp.xml /tmp/library.xml

    # Replace the Location of the Library
    sed 's/file:\/\/localhost\/Volumes\/Bla\%20Bla\/itunes\//Z:\/itunes\//g' /tmp/library.xml > /tmp/library_tmp.xml && mv /tmp/library_tmp.xml /tmp/library.xml

    # Replace Spaces
    sed 's/\%20/\ /g' /tmp/library.xml > /tmp/library_tmp.xml && mv /tmp/library_tmp.xml /tmp/library.xml
    <<<

    then you can import this collection on a regular basis. now all it would need is to check the imported collection on pc2 for changes - i guess the playcount has to be in there somewhere.
    to match the playcount changes, maybe one can create a new playlist which only includes the played songs on pc2, sets the playtime to 0seconds and "plays" the playtime on pc1 whenever one wants to "sync" the playtimes from pc2 to pc1....

    sounds reasonable? i stopped at the shell script, hadn't really found time to work out the rest yet :-/
    • Actually, there are ways via AppleScript to manipulate live libraries, this requires iTunes to be running. The problem as i see it is coming up with a clever way of both pushing and polling for changes from other clients. I wouldn't be surprised when Apple finally decides to implement this, it will make use of MobileMe as an aid to exchange updated metadata between live client sessions.
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  • I’m frustrated
    I recently upgraded my phone and made what I realize now as being the biggest mistake I have made in years; I invested in an iPhone!
    I am very disappointed that I lost the flexibility of "drag and drop" music and file folders that I have always had with media card type of smart phone systems. I have searched and read numerous articles on the internet to see if there was a way to achieve the "drag and drop" with my new iPhone but it seems there are many other people like you with issues similar to mine.
    I am at the point where I am now determined to go back to my phone service provider and bite the bullet in accepting my losses to switch to another type of phone that will have a more reasonable and user friendly type of file transfer system.
    As far as I am concerned, I will never want any more Apple products until the Apple garbage for file and software handling capabilities are modified.
    It is too bad because they have some lovely equipment.
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  • I’m happy
    If anyone is still following this I think I have found the answer. I have a similar problem where I have a mac mini as media center in my home (master), and a windows laptop and macbook air laptop that I consider slaves. I want partial music sync on both laptops, and full sync to the mac mini.

    After reading this thread I tried a number of tools and apps, and found that the mytunesync app seems to be perfect for me.

    It allows me to sync selectively between the machines, including metadata.
    I have the main itunes library on the mac mini with the actual mp3 repository on a NAS which the mac mini points to. The other laptops have their own libraries and own song repositories which are synced with the mac mini.

    Works a treat. It's free software to try and not expensive if you like it 3 licenses are $30 (total).

    So after reading this thread I know my scenario is not the one that seems to be plaguing most, but if I understand it, then I think the mytunesync can solve the problems listed here.

    It appears that people want multiple libraries on multiple machines, but with only one data repository. If that is the case, you might want to try this:

    In mytunesync, on each machine, has different sync locations for both library and song repository. So you could have say a laptop with your library on the c: drive, and tell mytunesync to sync that library, BUT to point the song repository BACK to the same shared location that your laptop actually points to for its music. This way when it comes to sync the music along with playlists, it will realise that the mp3 (or whatever) you want to sync actually already exists on your designated music folder, and it will not copy the file or overwrite it.

    Yes, to solve this problem properly apple need to chanhe their format of their library from an xml file to a proper shared db file of some type.
    But until then, try mytunesync as it works for me and it might solve the problem listed above. (might as in theoretically it should but as I have no need for it I haven't tested.)

    P.S. App comes in both mac and windows flavour.
    • This sounds very promising, mslaterhk.

      So I'm wondering, based on your actual use of mytunesync, how well does it handle that shared media repository on the NAS? If you add a song via your MacMini (with the file going to the NAS), will the iTunes libraries on the two laptops "notice" the song once they're synced? Does mytunesync create a duplicate of that song, or will it just add a reference to it in the laptops' libraries? Also, are you able to make use of the local repository on your laptop *and* the repository on the NAS (presumably with two different libraries?), or does it have to be one or the other?

      Thanks again!
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  • Hello Scot,
    Ok, to answer your questions:
    - As the laptops need to have their own repositories for traveling, mytunesync will duplicate the song that was added to the mac mini library to the other laptops.
    - I have set it up so that the laptops automatically sync with the mac mini every 24 hours if they are connected to the home wifi, but you can also click on the manual sync button to get synced faster. So far anything that is added to the mac mini is synced to the laptops with no problems. After a little playing around, I've found that if I want a song onto my laptop and not on my wifes laptop, I just put my name in the comments field of the song in tunes. I have setup the syncing on my wifes laptop to exclude all media on the mac mini that has my name in the comment field, and vice versa on my laptop if her name is in the comment field on the mac mini.
    - As to whether the mytunesync will add just a reference in a synced library to the master - I don't know as each laptop has its own repository. However withint the next two days I'll be adding another desktop to the lan which i do NOT want to have its own repository, so I will be able to test then and report back. But after playing with the settings of mytunesync I don't think there will be any issues.
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  • 2
    Two words: Home sharing
    I was initially put off as I assumed that this was only for iTunes purchases. However, change the show setting (after clicking on the home shared library) to 'not in my library' and simply import. Thats it. Easy.
    iTunes purchases will be sync'd automatically but to do it manually is really straightforward. This will only work computer to computer (and so I'm sure it wont work with a NAS based library. But when its this easy, why would you need a nas share (especially as non-local libraries will access slower due to the network delay).
    I've tried all the alternatives and home sharing is the answer. No duplicates etc. either. Just works. Well done Apple - my faith is restored.
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  • Thanks everyone for such a great yearlong discussion which I just read. I am new here and have tried a bunch of alternatives including homesharing and mytunesync (casually).

    Here is my simple scenario - I have an iphone4, a windows vista desktop and windows vista laptop. I want to be able to put material (music, videos and pictures) on the iPhone from either the desktop or laptop. I have designated that I manually add the material myself as I am a composer/orchestrator as well as a videographer (so I create my own original material which goes to the iphone for demo purposes).

    Now getting the two itunes libraries to be the same / in sync seems to be doable. The problem is the iphone can only sync to one library. Now if the two libraries are sync'd exactly, I can wipe out the iphone each time I move back and forth but that is quite time consuming with over 20 GB of material on my iphone.

    I would have to believe in the windows world that there is something iTunes is using from the phone to determine if the library it is sync'ing with the correct one or not (something in a file or registry key). Is there something I can copy or set up on my laptop to make the phone think it is the same library as the desktop?

    Then when the two are exactly sync'd, I can also sync the iphone on either one to move pics, music, and video to my iphone.

    I would like to use itunes if possible without replacing it completely with a third party alternative to itunes.

    (by the way, I used home sharing to manually make the two libraries sync'd and then ran an evaluation of mytunesync and it confirmed that by saying it had nothing to do).

    Thanks for any insight (and hopefully a file/registry hack),
    Joel
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  • I’m thankful
    Thanks to "michael.gill" for your response above. After reading your post I enabled Home Sharing from the "Advanced" menu in iTunes on two separate machines (primary media Mac Mini and a MacBook Pro). Purchases are syncing properly and those that weren't can be manually copied by using the "Import" button or by manual drag-and-drop. So far, so good.

    I'll report back if I encounter any problems.
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  • Keep in mind as far as I know, home sharing will sync the itunes libraries but it has nothing to do with the pictures, music and video on the iPhone. Even if the two itunes libraries are sync'd, the phone is still tied to single iTunes library and you can not sync it with the other or use the other to manually add or delete things on the iPhone.

    A few years back, someone discovered a hack by modifying two files which would make both libraries look the same. However, this hack stopped working in Itunes 9.

    However I was able to discover another free solution to solve the above problem and my tests have shown that I can indeed update my iPhone 4 from either my desktop or laptop using iTunes 10.2.2.12 and 10.2.2.14. In addition, this solution does not require you obtain or use a 'hex editor' as the original solution did. It's called, "iTunes DB Cloner 0.9.1.0".

    Perhaps this will help someone if you have the same challenge as I did.

    Joel
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  • Hello

    I have my main iTunes library on my MacBook Pro, and I live in between two cities.

    I want this complete iTunes library (with playlists, metadata, ratings, ....etc) to be replicated over to another MacBook Pro that I have in the second city.

    Is it possible over the Internet? If not, what's the best app that's available or method to do it in the same place (same home).

    Thanks
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  • http://guides.macrumors.com/Keeping_2...

    This guide will show you how to have two exact replicas of your iTunes library on two different Mac. This is useful if, for example, you have one main machine (in my case a Mac Mini), and a portable (e.g. a MacBook Pro).This is going to be an intermediate Mac user guide, but don’t let that put any beginners off. Once the main Automator application is written, it’s fairly foolproof.
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  • Hi all,

    here's a new, minimalistic way of synchronizing iTunes libraries - AutoTunes. It simply monitors a folder and automatically add files to iTunes as they are added to the folder. You may use it together with Dropbox or simply share your media folder via network.



    Here are couple suggestions how it can be used:



    Kaspars

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  • i don't quiete understand .. do the playlists and playcounts get monitored aswell!?! god that would be super awesome!!!
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  • The best way to proceed, imo, is to use the home sharing. It will sync everything !
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  • Indeed, this can only sync actual media files. Advantage over home sharing is that

    1. it's fully automated

    2. if you put files in something like Dropbox, you can use it on remote computers

    3. In local network, you don't need to duplicate files on each computer, you can simply store them in a single network share. For example I've around 400GB of music files, I don't even have that much space on some of my computers.

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  • i guess i'll stick to buying a "cheap" old mac mini as a media server than ... all those concepts just don't feel quite right.. :(
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  • 1- Firewire is the fastest hookup
    2- Connect to server to hook the 2 computers together
    3- Make sure they're both authorized under your iTunes account and running the up to date version of iTunes
    4- Drag the iTunes folder of/from the computer you want to mirror into the Music folder of the other and replace the iTunes folder there.
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  • I’m excited
    Dear all, I'm glad to inform you all that this topic has no reason to exist anymore, with last week's announcement of iCloud, Apple is providing a straightforward, efficent and free solution, not only for music and videos, but anything you ay have managed via iTunes (books for the ipad, apps, files loaded in your favorite iphone apps storage) will be seamlessly synced among your devices automatically, the only requirement is internet connection.

    This will have no storage limits for purchased content, while there will be 24.99$ fee to handle your own ripped/downloaded music and contents.

    Apple has been clever enough to make sure no files get lost, despite you have different storage capabilities on different devices, at any time you can download any content stored on the cloud in one click, anywhere.

    The final result is that finally iTunes becomes just one of the many clients, while the repository of all our files is the Clous, allowing us to move from device to device, multiple computers or the web and have all our content available!

    It seems great and the best solution we might have been looking for, all the details are available here: http://www.apple.com/icloud/
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  • It's indeed great news for a lot of users. The only drawback is that iCloud will not support lossless music files and will downgrade them to 256-Kbps (source: http://www.apple.com/icloud/features/)

    So if you have a bunch of CDs ripped using lossless codec and want to synchronize them without losing quality this won't work.
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  • I hope someone can help me with this iTunes problem - each time I restart my pc I'm getting that applesyncnotifier.exe...not found error. I searched on this applesyncnotifier.exe and what I tried is uninstalling iTunes and then reinstalling the latest version, unfortunately it didn’t solve the problem, this error keeps popping up. If this isn’t my iTunes installation, what could that be?
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  • I’m pfui!
    apple is control freak company :P. They promote simple use of their products, but all they do is just produce expensive things for stupid people. Accidentally I got one older iPod Shuffle, and I thought for a moment, oh Apple is really simple to use, but apparently it is so stupid and complicated. The BEST mp3 players are simple ones where you simply copy the songs directly, and not opening special software just to copy music. So f*BEEP* stupid! But anyway after criticizing Apple for their control freak logic there is Foobar2000 player which I use on Windows and small plugin for it with which is possible to transfer music to this device MUCH easier!!! And also worth mentioning it small software which does not start like million processes behind your back and is all the time boring you with messages for updates and stupid sync options. It is made exactly for its purpose and not to spy on their users!
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  • Go to the purchased section on iTunes. Go down to the bottom and select Download previous purchases.
    You come to a PURCHASED screen. Then you select a category.
    You press the download button next to each song. then it dowloads to your computer. This will work unless your computer is not authorized.
    If you need to authorize your computer go to the Store button in the upper left hand corner and select Authorize computer in the drop down menu. Then you authorize it and you can start importing the songs that you wanted.
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  • Home sharing and iCloud can solve this problem.
    Works like a charm!
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  • TuneRanger alows you to keep iTunse libraries in sync. But personally I use my iPhone as a kind of storage device and keep my iTunes libraries in sync with CopyTrans.
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  • The one problem with CopyTrans, which they have no intention of addressing, is that if you have a playlist with duplicate tracks, obviously on purpose, CopyTrans only brings the 1st instance of the track into the playlist, this leaving the song count and desired effect short. Here is a slightly complicated method that I use to keep things synced across multiple computers.
    1) On the 'master' PC, make the iTunes media folder Shared
    2) On the 'slave' PC(s), enable Offline File Sharing (aka CSC)
    3) On the 'slave(s)', use Map A Network Drive that points back to the iTunes media folder that you made Shared on the 'master'.
    4) Enable Home Sharing in iTunes to autosync your purchases while the 2 computers are not connected to the same network.
    5) Any changes made to files on either the 'mater' or 'slave(s)' will be synced once the computers are back on the same network (e.g. addition of artwork and lyrics).
    6) Do not use the Home Sharing to drag and drop songs/videos/movies from one library to another as this will make a copy (i.e. Song X will be copied into the same folder as the original but it will get a 1 tacked onto the file name).
    7) For any playlist updates, say you made a playlist on a 'slave' while on the road (i.e. disconnected from the 'master'), you simply use the the iTunes export/import function for a couple of playlists, or you can import the .xml file from the 'slave' to the 'mater'. Since you are using Offline File Sharing, the directory structure will be the same, any existing playlist in a folder will get recreated in the iTunes Playlist 'root', as well as any new ones. the one gatcha here is any of those 'auto created' playlist (Top 25 Played, On-The-Go's, 90's music, etc.) will get replaced. to avoid this, you can either Export the 'critical' playlists that will get replaced and simply import them after you import the other PC's .xml, or you can open the .xml in Notepad and delete the playlist sections that you do not want to get updated
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  • Amazing how common and seemingly-simple this requirement is!

    SuperSync will synchronise iTunes libraries - both media and XML metadata and is cross-platform. It can treat music and video media separately. It's $27 for 5 machines (which can be either Mac or Win). It also says it can "Share a common library with multiple iTunes users on a network drive" which is the main topic here (as opposed to all the side-threads introduced). It also will copy music off your (or someone else's) iPod/Phone/Pad or USB drive/stick into your library if you want that kind of thing.

    I've used SuperSync to synchronise iTunes libraries on different machines but not (yet) to manage a common library. It's quick on a wired network. It does't mention performing a sync at defined times, but that doesn't mean it won't do this. You can access media remotely too.

    Ideally I'd like a common library and a mirrored backup of it on another drive for security. The mirror is easier to do - CarbonCopyCloner does this on the Mac and is freeware (AdWare?) and can be set up to do this regularly. Will attempt to set up a common library and report back.
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  • iTunes Match - Available in iTunes as a subscription, $24.99 per year.
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  • This article shows a couple different ways to get itunes to sync to multiple itunes libraries. My favorite way is using the Multitunes app from cydia.

    http://appducate.com/2013/01/sync-an-...
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  • Thanks amanda :) But that is not what this thread is about. Here we concern ourselves about keeping metadata and data changes consistent across libraries that span multiple computers. The kind of simplistic one-way sync that you're referring to has been known for years. A little higher up in this thread you will find a breakdown of the issue :)
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  • Now it has become easy to sync iTunes library on multiple computers . Where iPhone transfer for Mac tool is one of best way to get rid from this situation. If you are one who are looking to transfer files then this is one of best way to get of this problem. Even all kinds of files can be restored back.
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