Question: where is idvd on my mac?
Answer: Whilst Macs with a Superdrive continue to be able to burn video DVDs, the software for so doing, iDVD, is no longer included in the iLife bundle that came with OS 10.7 Lion and beyond. And iDVD is no longer included in the iLife 11 from the online Apple Store: http://www.apple.com/ilife/.