iTunes 101: Multiple Devices, One iTunes Account - Tech News and Analysis - 0 views
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iTunes is limited to authorizing only five computers with each iTunes account
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if you have created five different user accounts on the same computer, and have authorized iTunes for each user account on that one computer with the same iTunes Account, then you have reached your maximum number of authorizations.
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once you have iTunes configured with a single iTunes Account, there does not appear to be a limit to the number of iPods, iPhones, and iPads one can sync to a single iTunes library.
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you may notice some strange behavior when you sync your iOS devices: apps seem to disappear and appear at random with each sync.
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apps that were purchased on one device are being lost, while apps purchased on a different devices are being added.
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transferring purchases before each sync, and disabling the automatic synchronizing of new apps on each iOS device.
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“Automatically Sync New Apps” option in the apps tab of your iOS device info screen in iTunes applies to any app in your iTunes library that has been added to your iTunes library since your last sync. If you are managing several iOS devices from one account, it is a good idea to disable this feature
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Changing which iTunes Account is used on the device to be something other than the iTunes Account you sync with may cause problems when the sync operation transfers purchases from the device to the iTunes installation on your Mac
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plan on using the same iTunes Account on both your computer and your device to avoid those problems.
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Another layer of iTunes media management has to do with remote playback of your iTunes library, which is accessible on multiple devices via Home Sharing.