iTunes Gift Card
iTunes Gift Cards can be redeemed for songs, albums, audio-books and videos on the iTunes Store. They cannot be used to buy Apple products.
How to Use iTunes Gift Cards and Certificates
To use an iTunes Gift Card or Certificate you must first download the latest version of iTunes.
Gift Cards and Certificates are valid for use only in the country in which they were purchased. Only residents of the U.S may redeem gift certificates purchased in the U.S.
To redeem iTunes Gift Card, go to the iTunes Store and in the Quick Links section in the right column, select Redeem. Or go to the iTunes Store "Redeem Code" area directly by visiting http://www.apple.com/itunes/store/gifts.html
Once you redeem your iTunes Gift Card, the full amount appears as a credit next to your Apple ID in the upper-right part of the window. Any time you buy an item, the purchase price (+ tax) will be deducted from the balance.
Cost: 2,500+ points