Currently Being ModeratedDec 10, 2012 12:19 PM (in response to md78652)
It's not available as a download. You would have to purchase an iLife '11 boxed set from Amazon.com or other vendor in order to get iDVD. It's no longer part of iLife that's available from the App Store.
Currently Being ModeratedDec 10, 2012 12:20 PM (in response to md78652)
iDVD has been discontinued and is not available to download from any legitimate source.
Buy a copy of iLife 11, iLife 09, or iLife 08 from an aftermarket vendor, and install only the iDVD app itself. Search for it on Amazon or other software vendor. It is stil available at a reasonable price.