A manual for writers of research papers, theses, and dissertations, 7th edition - Kate L. Turabian 2007

CD-ROMs or DVD-ROMs
Notes-bibliography style: citing specific types of sources
Part II. Source Citation

Cite works published on CD- or DVD-ROM as you would analogous printed works, most often books.

N: 11. Complete National Geographic: 110 Years of “National Geographic” Magazine, CD-ROM (Mindscape, 2000).

B: Oxford English Dictionary. 2nd ed. CD-ROM, version 2.0. New York: Oxford University Press, 1999.