How to Move iTunes Library on an External Drive to Another Computer

Question

How do you move your iTunes library (including all your playlists) if your iTunes media files—movies, TV shows, music, etc.—are housed on an external drive, rather than the local drive on your computer?
The usual advice concerns copying media files from one computer to the next, e.g.:
http://support.apple.com/kb/HT4527
But if your media is on an external device, you don’t want to copy it, just access it from a new device. You could plug the drive into your new computer and drag the media into iTunes, but then you would lose your playlists and other information.
Fortunately, you can transfer an entire iTunes Library using the Export/Import function. The essential information is found in an Apple support document, “iTunes: How to re-create your iTunes library and playlists”:
http://support.apple.com/kb/ht1451
Using this information, we can create a procedure for transferring both the media files that are on an external drive and the iTunes Library that goes with it.
Here is the procedure:
1. On the old computer, Export the playlist, using File > Library > Export Library. Transfer the resulting file to the new computer.
2. You might want to note the number of music files, TV shows, etc. you have on the old system. Select View > Show Status Bar, then choose the “List” view, and this information will be shown at the bottom of the iTunes window. Also disable sharing, etc.; you may want to deauthorize the computer as well.
3. Close iTunes on the old computer, dismount and disconnect the external drive(s). (Yes, this will work with media on multiple drives).
4. On the new computer, close iTunes and delete “iTunes Library.itl” in the iTunes folder.
5. On the new computer, Connect and mount the external drive(s).
6. Open iTunes on the new computer. Choose Preferences > Advanced. Deselect (uncheck) both “Keep iTunes Media Organized” (because it’s already organized on your external drive, right?) and “Copy files to iTunes Media folder” (because the files are on the external drive). Then set your iTunes Media folder location to your media folder on the external drive and click on “OK”. (Note: don’t close iTunes after this step, because it will automatically reset your media folder to your local machine rather than the external drive).
7. Choose File > Library > Import Playlist and choose the file you exported from the old computer. This will import all the media you had on the old system into iTunes (no need to manually move anything from the external drive). The import will probably take some time.  (If you see that iTunes is copying files, you probably messed up Step 6; you can stop it and go back to Step 4 without harm).
8. After the import, you can check the numbers you noted in Step 2; if there is a discrepancy that bothers you, check out the scripts “Music Folder Files Not Added” “List MIAs” and at http://dougscripts.com/itunes/.
9. When everything is satisfactory, you can recheck “Keep iTunes Media Organized” and “Copy files to iTunes Media folder” in Preferences.
10. You may now want to enable sharing, sync iOS devices, etc. Also be sure to set up your backup strategies on the new machine (you *do* have backups of your external drive(s), right?). If you already had some media on your new computer and you want to incorporate it into the external drive, choose File > Library > Consolidate.
11. Oddities:
* iTunes Extras must be manually imported.
* Some of my movies & TV shows imported as “Home Video”.
* Mobile applications did not import (presumably because no iOS device was synced).
* Books that were once handled by iTunes are now handled by iBooks and will not import (to let iTunes see them again, you’ll need to add them manually to iBooks, then choose File > Move Books from iTunes). Audiobooks import okay, but you may have to authorize your Audible account.

Answer 1

Or:
Copy the iTunes folder from the old computer to the same location in your user area on the new one.  Attach the external drive and start iTunes.  If you have put it in your Home > Music folder the application will automatically know to look for it there and becausse you are using the same library it will be configured to look for media on the external drive.