Distributed Multimedia Databases -- Bridging the Semantic Gap in Image Retrieval -- Content-Based Visual Information Retrieval -- Content-Based Trademark Recognition and Retrieval Based on Discrete Synergetic Neural Network -- Concepts ofEmergence Index in Image Databases -- Distributed Temporal Video DBMS Using Vertical Class Partitioning Technique -- Video-on-Demand : Scalability and QoS Control -- Video Database Techniques and Video-on-Demand -- Broadcasting Approaches for VOD Services -- Watermarking on Compressed/Uncompressed Video Using Communications with Side Information Mechanism -- Hiding Images Using Dynamic Bit-Replacement and Human Visual System -- Embedding Robust Gray-Level Watermark in an Image Using Discrete Cosine Transformation -- Multicast : Concept, Problems, Routing Protocols, Algorithms and QoS Extensions -- Multimedia and Multi-Stream Synchronization -- A Simple Prediction Method for Progressive Image Transmission -- Case Studies of Multimedia Databases -- A Multimedia Database Supports Internet-Based English Learning -- Case Study: Cairo, A Distributed Image Retrieval System for Cluster Architectures -- VRML-Based System for a Three-Dimensional Virtual Museum -- Organizing Multimedia Objects Using a Class Algebra Database -- Use of the Frame Synchronization Technique to Improve the Visualization Realism on the Web -- Future Multimedia Databases and Research Directions.