This is a CD-ROM copy of Explorapedia Children's Interactive Encyclopedia The World of Nature. This software seems to have been meant for DOS, Windows 3.1, and Windows 95. I was able to test it on Windows 10, but it may not work well or at all outside of DOS/3.1/95 for other users. Please be certain you're able to run software for those early operating systems before purchasing this software.The disc has several light scratches and there are cracks in the jewel case.This will ship USPS Ground Advantage in a small box.Please let me know if you have any questions.