HT2519: Download past purchasesLearn about Download past purchases
Currently Being ModeratedAug 16, 2013 4:41 AM (in response to LSCDMF)
Where are you looking to re-download them from ? What you can re-download will show under the Purchased link under Quicklinks on the right-hand side of the iTunes store home page on your computer's iTunes - but what content types that you can re-download will depend upon what country that you are in (what can be re-downloaded where).
If the types of item that you want to redownload aren't shown there, and you don't have them on an old computer or on a backup of your library, then you can try contacting iTunes Support and see if they will grant you a re-download : http://www.apple.com/support/itunes/contact/ - click on Contact iTunes Store Support on the right-hand side of the page, then Purchases, Billing & Redemption