Board Thread:Fun and Games/@comment-122.111.255.111-20131229025907/@comment-4613046-20131229174719

If I remember correctly CD Projekt RED includes the content from the Enhanced Edition directly on the disk. Older copies of The Witcher 2 should be able to download the data from the Enhanced Edition for free.

So to answer your question, The Witcher 2 EE does not include a separate DLC disk but instead the content comes preloaded with the disk.