ContentGuard, a provider of Digital Rights Management (DRM) technology, has launched RightsExpress, a Web-based Rights Editor for MPEG REL, the forthcoming rights expression language developed by MPEG (Moving Picture Experts Group) and currently at Final Draft International Standard status in the ISO process. This service is designed to allow a user to quickly understand the features and deployment options of MPEG REL as they explore how rights and conditions can be used in various DRM application workflows. Through RightsExpress's user interface and on-line guidance, technical and non-technical users can experiment, model, and create REL licenses. RightsExpress also provides preloaded sample licenses that can be modified by the user. RightsExpress is available now and can be accessed at http://rightsexpress.contentguard.com.