From the installation window pop-up. Standard stuff, system requirement is worth looking.
Use iTunes to import CDs or download songs and videos from the iTunes Store. Make playlists perfect for any occasion. Burn playlists to CDs and play them on your home stereo. Sync your media with iPod or iPhone to enjoy it on the go, or play your collection on your TV with Apple TV.
What's new in iTunes 7.7
Use iTunes 7.7 to sync music, video, and more with iPhone 3G, and download applications from the iTunes Store exclusively designed for iPhone and iPod touch with software version 2.0 or later. Also use the new Remote application for iPhone or iPod touch to control iTunes playback from anywhere in your home — a free download from the App Store.
iTunes 7.7 requires a Macintosh with a PowerPC G3, G4, G5, or Intel Core processor, at least 256MB of RAM, Mac OS X version 10.3.9 or 10.4.9 or later. To use iPhone with iTunes, Mac OS X version 10.4.10 or later is required.
To use the iTunes Store, QuickTime version 7.4.5 or later is required. To play purchased videos from the iTunes Store, iTunes 7.7 requires a Macintosh with a 1GHz G4 processor, and at least 16MB of video RAM.
Syncing purchased movies, increased-quality TV shows, music videos, and iPod Games requires an iPod nano (third generation), iPod classic, or iPod (fifth generation) with software version 1.2 or later. Some iPod Games may not be compatible with iPod nano (third generation) and iPod classic. Syncing ringtones requires an iPhone with software version 1.1 or later.
Purchasing from the iTunes Wi-Fi Music Store using iPhone requires iPhone software version 1.1.1 or later.
Renting or purchasing from the iTunes Store using Apple TV requires Apple TV software version 2.0 or later. Transferring rented movies requires an iPod nano (third generation) and iPod classic with software version 1.1 or later or iPod touch and iPhone with software version 1.1.3 or later. HD movies from the iTunes Store are designed exclusively for Apple TV and may not be transferred to iTunes.
Nike + iPod requires the Nike + iPod Sport Kit, an iPod nano with software version 1.2 or later, and Nike+ ready shoes. To see your workout data on nikeplus.com, you must have an Internet connection and a free Nike.com account. For more information, visit www.apple.com/nikeplus.
AirPort Express with AirTunes requires an AirPort or AirPort Extreme Card and a compatible stereo system or powered speakers. Playing your music with one or more AirPort Express Base Stations requires AirPort Express Firmware 6.3 or later. Some ISPs may not be compatible with AirPort Express. For more information, visit www.apple.com/airportexpress.
Make sure you have the latest updates of Mac OS X, QuickTime, and iLife. To get the latest updates, chose Apple menu > System Preferences, click Software Update, and then click Check Now. After you install an update, it's a good idea to click Check Now again to make sure you have all the latest versions. To get the latest upgrade to Mac OS X, visit www.apple.com/macosx.
To create audio, MP3, or backup CDs with iTunes, your Mac must have an Apple combo drive or SuperDrive. To back up your library to a DVD, your Mac must have an Apple SuperDrive. Some non-Apple CD-RW and DVD-RW drives may also work.
If you plan to use the iTunes Store, a broadband Internet connection is recommended.