Heather, you did not give the title and source of the CD ROM. I believe many of us would be grateful fo that info, please!!! Ray McAllister, Prof (Emeritus) Ocean Eng., FAU, Boca Raton, FL 33064 Diving Dinosaur, Geologist/Oceanographer/Ocean Engineer, 43 years SCUBA mcallist@gate.net (305) 426-0808, Author Diving Locations, Boynton/Dania