Then I would re-sync all my music and see what happens. Maybe I have bad sync cables, I don't know. I do have some new ones on the way, so we'll see if that doesn't cure it, but right now, I'm really frustrated because it won't sync and i have no music. Using a MBP, latest version of El Capitan and iTunes. Unfortunately, your earlier symptoms (songs skipping) and your new ones may point to the iPod having a faulty hard drive.

Doing a Restore was the correct action, because the cause for the skipping songs may have been data corruption. After the Restore, the problem with not being able to complete a sync may be due to a problem with the hard drive (iTunes is not able to properly write data to it), which was also the cause for the data corruption (the iPod was not able to access its stored data).

You can try doing an Erase using Disk Utility, to completely reformat the iPod's hard drive. Select the iPod in iTunes and set it to Enable disk use (on the iPod's Summary settings screen), if it is not already. In the Disk Utility sidebar, select the iPod DEVICE, NOT the volume indented below the device. For Scheme, select Apple Partition Map (NOT the default GUID Partition Map). For Format, select OS X Extended (Journaled). Click Erase.Īfter the Erase completes, quit Disk Utility and run iTunes. The iPod does not have its on board software, so you need to do another Restore using iTunes. After the Restore completes, set it up and try syncing. If you still have the same problem, the most likely cause is a faulty hard drive. Here's a test you can do, to trouble-shoot the problem with the delay when opening iTunes, to narrow down and isolate possible causes.Ĭreate a new OS X user account in System Preferences Users & Groups pane. The 'Test User' account can be a Standard (or Administrator). Log out and log in to the new user account. Set up the new user account like your primary account, linking it to your Apple ID. Run iTunes, and sign in using your Apple ID. If you have songs purchased from the iTunes Store, you can use the Purchased screen to add some of your past purchases to your iTunes libraryĭownload your past purchases - Apple Support This is a new iTunes library at this point. When you quit and relaunch, do you experience any delays? If you do not, the cause of the problem is something in your usual account, such as your iTunes library database or third-party background processes that run when you log in. One thing to check for with iTunes (at the system level) is 'plug-ins.' Look here (using Finder) If the same delay does occur in the new user account, then the cause is at the system level (or maybe something related to your Apple ID in this case) that would be the OS X system, or the overall iTunes application. Library/iTunes/iTunes Plug-ins/įor any iTunes 'extensions' from third-party developers (not Apple). I have only one item there it is called Quartz Composer Visualizer.bundle. Doing a Get Info on it shows it's from Apple. If you have anything there that is not from Apple, and it's something you don't need, remove it. See if the delay goes away.Īnother thing you can try (at the system level) is to reinstall iTunes. NOTE: If you are intentionally using an older version of iTunes, this gives you the latest version.ĭownload the installer and run it. (Start using the built-in Time Machine feature, if you are not already, for automated backups of your entire system.) You should always have a backup of your iTunes library data (along with the rest of your user data), but reinstalling the iTunes application does not affect your iTunes library data. If the new user account test points to problem at the user account level (not system level), one place to check is your Login Items. This is at System Preferences Users & Groups pane Login Items tab.

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