Are DVD's 1080i HD or not?

I was just wondering if DVD's are actually 1080i HD. I've been
wondering this for a while, but never really looked into it.
Example:

http://www.amazon.com/Harry-Potter-Years-Part-Gift/dp/B004LRPCSS/ref=sr_1_3?ie=UTF8qid=1309405959sr=8-3

Not a blu-ray DVD.