ITunes library on external HD no longer can be selected

I moved from old macbook pro with Snow Leopard & iTunes 9 or 10 something to new(er) macbook pro with Lion and iTunes 10.7. I keep a different music library from my internal one on external HD. When I option-click on iTunes startup to choose the external library, it is there on my external, in its own iTunes folder with associated media folder, but the library, extras, genius etc. are greyed out & cannot be selected. This is a new finding as i tried to open my external library for the first time on my new system.
I notice that for the external collection of files, there is no file with suffix .itl, but there are 2 that have suffix .itdb. My external library was created with an older version of iTunes, not sure which, but within last 2 years. It was accessible from the External thru several upgrades of iTunes using my old machine. I adjusted file permissions on all the external library-oriented files to see if that helped access, it did not. How can I get new iTunes to recognize the library file ? Thanks for any guidance or answers !

You have to have that one ending in .itl. That is the library file and iTunes has to use that one. Information on itdb below but those are support files for other features.
What are the iTunes library files? - http://support.apple.com/kb/HT1660
More on iTunes library files and what they do - http://en.wikipedia.org/wiki/ITunes#Media_management
What are all those iTunes files? - http://www.macworld.com/article/139974/2009/04/itunes_files.html
Where are my iTunes files located? - http://support.apple.com/kb/ht1391
Do you still have the .xml copy? You can import that into an empty library and rebuild most of your previous library.

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Tiger, iTunes library on external drive, no longer recognised

Still using Tiger on the iMac.
Software update caem up with iphoto/Pro Apps updates and a security update.
Duly installed the lot.
When I rebooted my heart sank when iTunes could not find the external drive library.
Rebooted several times, no joy, thought "why do discs fail a few days after you think I need to back that up soon?".
At this point also realsied the significance of telling everyone not to rely on AppleTv for a backup, having not backed up recent weeks iTunes Store purchases.
Tachycardic and nervous connected said drive to the Macbook running Leopard and it worked instantly.
Back to the iMac, no luck, and after much testing found the drive is simply no longer recognised on the Belkin hub it's been on for about a year. Other identical drives are still recognised.
Unplugging the hub and connecting the drive to the Mac direct it's recognised again. Absolutely reproducible and I can't explain it.
Have backed the content up now, but I'm convinced this is related to latest security update or peerhaps Apple team hacking into my iMac after all my negative comments about take 2
So, I know this may be a bit OT, but then again it is to do with the iTunes library foir AppleTV.
Any similar experiences or suggestions?
Good time to remind everyone - remember to back up your media files - these things always happen out of teh blue.
AC

Still using Tiger on the iMac.
Software update caem up with iphoto/Pro Apps updates and a security update.
Duly installed the lot.
When I rebooted my heart sank when iTunes could not find the external drive library.
Rebooted several times, no joy, thought "why do discs fail a few days after you think I need to back that up soon?".
At this point also realsied the significance of telling everyone not to rely on AppleTv for a backup, having not backed up recent weeks iTunes Store purchases.
Tachycardic and nervous connected said drive to the Macbook running Leopard and it worked instantly.
Back to the iMac, no luck, and after much testing found the drive is simply no longer recognised on the Belkin hub it's been on for about a year. Other identical drives are still recognised.
Unplugging the hub and connecting the drive to the Mac direct it's recognised again. Absolutely reproducible and I can't explain it.
Have backed the content up now, but I'm convinced this is related to latest security update or peerhaps Apple team hacking into my iMac after all my negative comments about take 2
So, I know this may be a bit OT, but then again it is to do with the iTunes library foir AppleTV.
Any similar experiences or suggestions?
Good time to remind everyone - remember to back up your media files - these things always happen out of teh blue.
AC

How to back up iTunes Library to external drive so it can be restored

I recently moved my iTunes Library from a firewire Lacie external hard drive to a Western Digital USd hard that is now having problems (It keeps unmounting itself and I don't think that's good). It was not easy to move my iTunes folder and make it work again. I do not want to send 3 weeks plus using my spare time relinking songs or recreating playlists. I had to re-link 6,000 songs one by one. I iTunes will make a backup on CDs or DVDs why not an external device? Why would I want to copy 80 plus gigs to CDs?
If I simply copy my iTunes folder to the LaCie drive like apple recommends and the WD fails, I will lose all my playlists, track info, art work. I just got it all back. There must be some type of back up program I'm not seeing.
Please, some one help me. I am very disappointed that this solution is not on here.
I'm going to copy the file for now but it's really a poor solution.
Message was edited by: CindyLoo

I want to back up every thing, but I can't find a way to do it. That is the problem. Apple recommends if you are backing up to an external drive to copy folder the music folder to the drive via drag and drop. But I know when you do this that if you try use the backup you will only have the songs as if they were first added to iTunes.
I was able this time to move my music folder successfully (Last time the problem wasn't immediately apparent as it didn't affect my iPod, so I hope I'm not jinxing it). For now, my music is back on the Lacie drive, but it's still not backed up. If the LaCie drive were to fail I'd be faced with reimporting all my music and re-purchasing the TV shows and movies. (I almost always make a CD of new iTunes Purchases. which is why I have no desire to have a second huge stack of CDs.) My computer will not burn DVDs.
I want to backup everything so that it could be restored and be like it is now, but I don't see a way to do it. And I am not backing up all 80 plus gigs to CDs. My computer would crash and burn.

ITunes library on external hard drive. Can't update iPod (not enough USBs)

Hi folks,
I've transferred my desktop machine from a 'vintage' iMac, to a nearly as vintage Mac Mini. My library is on a USB external hard drive.
How do I connect my iPod to update it? There are only 2 USBs on the Mac Mini.

Woah! woah! Why not just get a USB hub?
Like this: http://www.amazon.co.uk/tag/powered%20usb%20hub/products
Best to get a powered one (that connect to the mains power). It will give you more (very useful!) USB sockets, and you can forget about changing your keyboard and/or Firewire.

I have a new Windows tablet computer with limited hard drive space, and cannot transfer my itunes library to the hard drive. Can I run t media from an external hard drive? If so, how do I transfer my files?

I have a new Windows tablet computer with limited hard drive space (32 GB), and cannot transfer my itunes library to the hard drive. Can I run itunes from an external hard drive? I have tried to follow some of the directions on this site, but am having no success. Thanks.

iTunes will run fine with the media on an external drive.
However, I suggest that a tablet computer with a tiny hard drive is not ideal as the primary computer for managing an iTunes library, even a small one. If you have another machine, perhaps a big, boxy, inexpensive old desktop with a decent amount of storage, that might be a better choice.
http://support.apple.com/kb/HT1364

I have the computer with my itunes library on it but no longer have access to the email account the library was set up with. How can I transfer the library to a new appleid/email?

I have the computer that holds my itunes library. However, I no longer have access to the email account (and therefore apple account) it was set up with so can't sync/update etc. How can I transfer the library to my new apple id? Any help gratefully received as searched the internet but can't find the answer!
Have ipod touch 4th gen, ipod touch 5th gen and ipod nano 7th gen all to sync to library.

Hi Stillme,
You cannot transfer purchases from one Apple ID to another. You need to go into the old Apple ID and change it to the new email address instead of using a new Apple ID altogether.
Apple - My Apple ID
If you can't remember the password to the old ID, then click on Reset your Password, and answer the Security Questions. If you can't remember the Security Questions, contact iTunes Support and have them reset:
APPLE ID SECURITY CONTACT NUMBERS
Once you get into your old account, Edit the Apple ID to your new email address. Before you will be able to do that you are going to have to change the email address on the new Apple ID to something else.
Cheers,
GB

Using same iTunes library with external hard drive (EHD) on different PCs

I know some of the issues related to this question have been touched on in different discussions but I don't think I have seen a clear yes/no and if yes, here's how, answer to my queries, so here goes.
Like another member, I would like to take my iTunes library with me when I'm away on holiday so that I can (for example) use an Apple TV with Home Sharing to watch movies in my library or pay albums in my music library while on holiday, in the same way as I am able to at home. I have a Samsung NC 10 notebook running Windows XP (which I would take with me with a Samsing Story EHD) and a Dell desktop. My iTunes media folders are now on the EHD and I think I have iTunes library files on the Dell and on the Samsung. Of course, if iTunes Match covered movies as well as music, I would use that and just take my Apple TV with me ... but it doesn't and seems not likely to.
By messing around and not properly understanding some of the discussions about this topic, I think my iTunes library looks as I expect it to be, on my Dell - though I have yet to test this by doing a synch with my iPad or iPod Touch. However, when I plug the EHD into the Samsung and open my library, I am missing at least one movie and I don't have any artwork showing for any of the movies. This is inspite of clicking Get Album Artwork, Consolidate Files and clicking to add, as a file (or folder) to the library, the missing movie which is on the EHD in the Movies folder of the iTunes Media. In iTunes on the Samsung "Preferences>Advanced", the iTunes media location (on my EHD) is correct.
I have obviously messed something up trying to replicate my Dell desktop iTunes library on the Samsung. So:
can/should I start again (if that is the best thing to do) with getting my iTunes library properly on to my Samsung notebook? And, if yes, how do I do that?
is it really possible to have all that you need to run and use iTunes on an EHD (i.e. both media folders and the various iTunes library files (.itl, .itdb, .xml etc.)) so that whenever I plug the EHD into my Dell or Samsung I can access my iTunes library in the same way and via the same files? Or, do you always have to have the library files (at least) located on the PC you are connecting your EHD to (showing my ignorance here! )?
if you can have all the library files as well as media on the EHD (i.e. all of your iTunes library), I assume there is more to moving these from the C drive in my Dell to the EHD, than just cutting and pasting them into the EHD and then deleting similarly named files in C drive in the Samsung?
if all of my iTunes library can be located in the EHD, would I just access that (i.e. open my iTunes library) - whether on my Dell or the Samsung - by pressing the Shift key when clicking on iTunes as a programme on my Dell or Samsung, or - and I appreciate this is more basic computer knowledge than iTunes query - does the fact that I would need to access iTunes via some form of link on the relevant PC indicate why some iTunes library files would always have to reside on the PC rather than the EHD?
if the iTunes library files have to stay on the relevant PC, how can they be kept in synch - i.e. the more portable Samsung offering the same access and picture of my iTunes library as the Dell does - or is iTunes just not set up to do this, in which case I might as well ignore trying to replicate my iTunes library on the Samsung?.
Apologies for this long list of questions. Any pointers to where the answers lie or even better specific answers themselves would be very much appreciated.
Many thanks.

I think that's yes, yes, yes, yes, and not necessary...
Make a split library portable
Here are the typical layouts for the iTunes folders:
In the layout above right, with the media folder (everything in the red box) inside the library folder, the library is considered to be portable. A portable library can be moved from one path to another without breaking the links from the library to the media, and being self-contained it is much easier to backup and restore. (You do backup, don't you?).
You can rearrange things to make a split library portable by taking a number of small steps which don't break the library.
Before you start any media files that are outside of the media folder will need to be consolidated. If the library is in the old style layout then it should be upgraded to iTunes Media Organization (Library > Organize Library > Rearrange files in the folder <Media Folder>) to ensure that iPod Games, Mobile Applications etc. are brought inside the media folder, otherwise the links to these won't survive changes in the path of the library.
The basic non-fatal manipulations are:
You can create or connect to an alternate set of library files by holding down Shift (Win) or Option (Mac) when starting iTunes. (Note iTunes will continue to use this library until you use the same method again.)
You can move the library files to a new location and connect to it there as long as the media stays put.
You can move the library files and the media together if the media folder is a direct subfolder of the library folder.
If you have already moved/copied the media content from a subfolder of the library folder to a different location then you only need to copy the library files for it to appear as if you have moved the entire library in the way allowed above. I.e. just copy the library files into the parent folder of the media folder.
You can rename the media folder to iTunes Media (if it isn't already) if the media folder is inside the library folder.
iTunes uses the name of the folder holding the library files as the window title. Having made a library "portable" you may need to take a final step of renaming the library folder to iTunes or, if the library files have ended up at the root of a drive, moving all of the library files and content folders into a new folder called iTunes.
IMPORTANT: After each change you need to open, test and close the relevant library before attempting another change. If a change broke the library, undo it or revert to using the previous set of library files.
In essence all you need to do to join up a split library and make it portable is copy the library files into the parent folder of the media folder on the external/secondary drive and use the hold-down-shift/option-when-starting-iTunes method to connect to it. Other manipulations may be required to normalize the library so that the library and media folders have standard names.
tt2

Itunes library on external hdd for mac and pc

I want to store my my iTunes library on an external hdd and use it with a Mac and a PC. All changes made on the Mac should be recognised on the PC and all changes made on the PC should although be recognised on the Mac - one library for both.
I already tried to store my library from my PC on an external HDD and then started iTunes on the Mac, pressing "alt". But I wasn't able to open the library. When I choose library.itl, the Mac just opens iTunes without opening my iTunes library.
Any ideas, how I can put all my music, videos and podcasts on the external and then use it on Mac and PC?
Kind regards,
Matthias

The only format drive that will work with both a Mac and a PC without you using additional drivers is an older format called FAT. Disk Utility can create this. Otherwise if you use Windows' NTFS you need something like NTFS3G or MacFuse, and if you use OSX's HFS format you will need MacDrive on Windows (others may also work for both PC and Mac -- those are just the ones I could remember).
Theoretically the Mac should have been able to read the .itl on the Windows NTFS drive but maybe since it found it could not write to it, it reverted to default.
Note, if anything happens to the FAT32 drive you will need to repair it using Windows. I also assume you aren't usign this drive for huge files because FAT32 has a 4GB filesize limit.
You will have to completely erase the drive to partition and re-format it.
iTunes: How to move [or copy] your music to a new computer [or another drive] - http://support.apple.com/kb/HT4527
do not confuse moving your whole folder and library with moving just media files as in
iTunes for Mac: Moving your iTunes Media folder - http://support.apple.com/kb/HT1449
Quick answer if you let iTunes manage your music: Copy the entire iTunes folder (and in doing so all its subfolders and files) intact to the other drive. Start iTunes with the option key held down and guide it to the new location of the library.
Macworld - How to transfer iTunes libraries between PC and Mac - http://www.macworld.com/article/46248/2005/08/shiftitunes.html

I was trying to add an itunes library to my computer, and now my itunes library can not be found. An ipod can be synced with only one iTunes library at a time. How can I find my Itunes library, complete with playlists ?

I was trying to add an itunes library to my computer, and now my itunes library can not be found. An ipod can be synced with only one iTunes library at a time. How can I find my Itunes library, complete with playlists ?

I have the same problem too and tried alot of things like time zone , restarting or changing DNS of wifi connection to 8.8.8.8 still nothing happens .. !!
iPhone 5s, iOS 8.3

Possible to save itunes library to external HD, when partial is on HDD?

I moved my itunes library to HDD to save space on my macbook, but as i continue to add songs to itunes, it added onto the macbook copy of itunes. Is it possible for me to save this itunes library to overwrite the old copy i saved on the HDD? How?
I know its confusing. Say
I saved my entire itunes library on external drive yesterday
today, i added 5 new albums on itunes, but it's residing on my macbook.
I would like to add this new library (old plus 5 new albums) and permanently move my itunes library to external disk.
I use to not like to have the external drive always attached to macbook since i use macbook as my primary browsing thing, but now i mainly use ipad.

I have most of the iTunes Library backed up in an External HD
What exactly do you have backed up on the external?

Backup and restoring itunes library from external hard drive?

is there a way to backup and restore my itunes library to external hard drive and not through the internal itunes backup utility cos i have over 20gbs of music and i want to keep my album art and renamed songs etc. because i will be reformating my pc and dont want to go through painful task of manually adding stuff again.

Try this...
*Fast backup for iTunes library (Windows Only)*
Grab SyncToy 2.0, a free tool from MS. Use it to create a backup copy of your iTunes library & any other media folders onto another hard drive or network share. After making the initial backup copy use SyncToy to periodically synchronise the backup copy with your library and only the changed files will be copied saving lots of time.
When the time comes to reformat your PC, do a final sync, then open iTunes & deauthorise the PC, reformat & rebuild Windows, copy the backup folders back to the same location as they were previously, install iTunes and it should all work perfectly.
tt2

TS1371 itune library.itl cannot open because it can done by newer version

itune library.itl cannot open because it can done by newer version

your in Quicktime discussion, try the folks in the iTunes they might help

How can you tell how much space is being used up by your iTunes...I am trying to figure out how much space I will need to transfer my iTunes library to an iPod and which iPod to select?

How can you tell how much space is being used up by your iTunes...I am trying to figure out how much space I will need to transfer my iTunes library to an iPod and which iPod to select?

Start up iTunes, and select Music, then click Songs.
Down at the bottom of the iTunes window, it will tell you how much space your library occupies.

I would like to load my purchased music from my iphone to itune library then to my ipod shuffle can this be done without aditional cost

I would like to load my purchased music from my iphone to itune library then to my ipod shuffle can this be done without aditional cost

Sure
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Can't import entire iTunes library from external hard drive

I recently had to reset my IBM ThinkPad T40 (Windows XP) to factory settings. Of course, I backuped up my iTunes library on an external hard drive, and there didn't seem to be any problems doing so. (I've had to do the same thing before) But I can't re-import the entire library now! It only imports about a thousand songs (I had about 5,000), and I get an error message saying "The file iTunes Library.itl~ cannot be imported becuase it does not appear to be a valid exported file.") I also tried to import a previous back-up (stored in a different folder, and it wouldn't import all of those files, either -- no more than in the more recent backup files) either. I've tried re-downloading the iTunes software several times. Help!!!!
Thanks!!!
PS: Is there a way to sync my iPod to import songs from that BACK into itunes?
IBM ThinkPad T40 Windows XP

This seems to have deleted ALL of my iTunes. The folder (and all iTunes files) is still there on my backup, but now the newly-installed iTunes won't import ANYTHING (It at least imported about 1,000 (out of 5,000) songs before. But now it says all files are invalid, regardless of where I attempt to import them from. (although the names of some playlists import -- but they're empty files) It appears that SOME of the music files are located on the backup copy, but simply won't import. Perhaps they're corrupted?

ITunes library on external HD no longer can be selected

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