In the past 4 years, the computer-based training laboratory of the Department of Surgery, University of Heidelberg, has developed a multimedia library, the med.LIVE-series. This CD-ROM series contains 5000 multimedia units with information of a uniform structure that comprises 26 CD-ROMs. These modules contribute significantly to the training and education of medical students and doctors. Furthermore, this multimedia library is intended to aid in the development of a database-supported online information system. Authors interested are encouraged to contribute to the series.