Installing Mavericks instead of Yosemite
There is no one universal installation DVD for OS X. Each DVD has files specific to that Mac model. For example, you cannot use DVD from "early 2011" Mac for "late 2011" Mac. That OS X is called "Maverics" but each Mavericks build can start only Macs that were made before that build was released.

I found this accidentally while trying to restore my wife's Macbook with my own DVD (miner is older) and could not. On the other hand, her newer DVD worked with my Mac. So I made a research and found that not all OS X DVDs are equal.

Search for another DVD.