The dates are correct,not missing any discs for the years,there is an extra bonus  CD-ROM in there.

Explore the world's wonders and vast knowledge with The National Geographic Society November 1888 to December 1997 CD-ROM Collection. This comprehensive set is a treasure trove of information, housed in a sleek wooden box that complements any bookshelf or desk. Perfect for learners, educators, and enthusiasts alike, this collection offers a rich array of content across various subjects, making it an invaluable resource for education and reference.

The compilation includes a variety of multimedia formats, allowing for an immersive learning experience. From the depths of the oceans to the far reaches of the universe, this CD-ROM collection brings the expertise of the National Geographic Society into your home or office. Whether you're looking to enhance your own library or gift it to a curious mind, this collection is a timeless acquisition.