The following message may appear when you open iTunes: "iTunes requires Windows 2000 or later. Please make sure compatibility mode is disabled in the Compatibility tab of the properties for iTunes.exe."...

With iTunes 10.4 or later on OS X Lion, you may get the following alert when attempting to play some older media files: "This movie requires QuickTime, which is not supported by this version of iTunes."...

After updating to iTunes 10.3 and enabling Automatic Downloads in iTunes preferences, you may see a "-50" alert message when attempting to sync an iOS device to iTunes...

When you create files with Pages, Keynote, or Numbers for iOS, your files are saved within that iWork app on your iOS device. Deleting any of the iWork apps will also delete the files you created within them. Although iOS devices will inform you about your files being deleted, it is a good practice to backup your files when possible....

After installing Xcode 4 on a computer using Mac OS X v10.6.x, you may receive an alert when syncing an iPhone, iPad, or iPod:...

Home Sharing in iTunes is designed to let you share and transfer content between multiple iTunes libraries on your home network, and stream from those libraries to an iOS device or Apple TV (2nd generation)....

This article explains how to stream music from iTunes on your Mac or PC, or from your iPhone, iPad, or iPod touch (iOS 4.3 or later) to your stereo or speakers using AirPort Express as a standalone Wi-Fi base station or as one of several Wi-Fi base stations....

Learn more about purchasing or renting movies from the iTunes Store that contain closed captioning....

iTunes 10.2 for Windows may quit unexpectedly. iTunes may display the alert "Unknown software exception (0xc0000409) occurred in the application at location 0x01b03335." Note: The location listed in the alert may differ....