This project was created to provide a reference guide to the most common types of digital storage media found in collecting institutions as reported by participants in the Society of American Archivists’ Jump In initiatives. Using the reports and media inventories submitted in 2013 and 2014, staff compiled a list of most common computer media types and arranged these into the following web resource--as well as a 24 by 36 inch printable poster with streamlined info-bites--to assist cultural heritage staff in conducting inventories of computer media.