lost/stolen

I sympathize for your loss, but sorry to say, officially Apple does not allow redownloads of purchased items other than iPhone/iPod touch applications. It's your responsibility to make backup copies (as iTunes itself advises) in case something goes wrong with your system or it gets lost or stolen. The official statement of their policy can be found here, among other places.

For apps, look here for instructions on redownloading. For songs, movies, and videos, if you don't have a backup of your purchased items, either on external media or another computer and don't have them on another iOS device, you're probably out of luck and will need to repurchase your content.

If you have your content on another iOS device or have things backed up, post back and someone here can help you get them restored. Otherwise you can try contacting iTunes Store Customer Service (select the "Music Purchases" or "Video Purchases" category, as appropriate, then "Lost or Missing Items". You'll find either an "Express Lane" button - just follow the instructions to get to the contact form - or an "Email Us" button) ") and explaining what happened. Reportedly in some cases Apple has allowed redownloading on a one-time basis. But don't count on it.

Regards.

Regards.