To first use the iTunes gift card, you must have iTunes downloaded onto your computer. The popular music program can be downloaded for fee onto either a PC or Mac. You will need to be sure that you have the most recent version of the program.
You do not need an iTunes account to redeem your card. However, it does not take very long. If you choose to buy other materials through iTunes, you will do it through this account. You can chose not to add credit card information if you are just redeeming the gift card.
Open iTunes. On the left-hand side source menu click "iTunes store." Click "Redeem" which will be under "Quick Links" on the right-hand side. On the back of your card you will see a 16-digit code. It is easily identified by the X that begins the sequence. Enter the code. The amount on the card will appear at the top near your account name. From here you can purchase the media you wish. Each purchase will be deducted from the amount of the iTunes card.