Abstract: Electronic multi-lingual dictionaries have seen considerable development in the last decade. The standardization of coding systems for the orthography of many Asian languages in the same period, combined with the increased availability of low-cost micro-electronic storage and display systems has opened up considerable demand and potential for dictionary systems in these languages. This report describes an on-going project to develop and maintain a comprehensive electronic Japanese-English dictionary capable of use within a variety of search-and-display, electronic-text reading support, and machine translation environments. The project files are being developed in the public domain. The dictionary files have, at the time of writing, attained the status of being the major freely available electronic repository of Japanese-English dictionary material in the world.