This module presents techniques for the representation, compression, storage, analysis and retrieval of Web-scale digital multimedia information, and their implementation as media search engines. The module is divided into 2 parts. The first part discusses the characteristics, mathematical foundation, compression, processing and applications of digital multimedia data including: text, image and video. It also covers standards in digital multimedia data such as JPEG, MPEG & H261, etc. The second part covers the analysis and retrieval of multimedia contents, including text, image and video. The course will also introduce modern architecture for text and image search engines.