iTunes 8.1.1 for Windows and Mac introduces HD video rentals to the iTunes Store, but almost more importantly also fixes some synchronization problems that the program had been having. Apple says that the improvements fix problems with VoiceOver, the built-in screen reader for the visually impaired, and lingering issues with syncing the iPhone and iPod Touch to iTunes.

Full changelogs can be read at the following links, for Windows and Mac.